L31 Vortec Cam Upgrade

At Crower, performance is our business. Was: Previous Price C $264. 3 L) as the base engine for the all new 1978 Chevrolet Malibu. Any number of items can be different on your engine, requiring you to use a different pushrod length. They are designed to increase horsepower and torque in your LT4. It's been suggested I run a Comp Cams tripower extreme (TPX254HR) 254/264,. Re: 2001 Vortec 8100 into 1999 Express 3500 chassis then under my 1997 G1500900. The L31 is a good Vortec head engine. I installed flat top pistons and a comp cam 268XFI cam. In the 21st century, the Vortec was placed in vans and some commercial automobiles until 2003. ) THIS IS A LIMITED TIME SALE PRICING. I'd just leave it in there, however I am swapping to a set of vortec l31 062 heads which I cannot have more than a certain amount of lift (. For nearly 50 years, we've fueled the passion of automotive enthusiasts. You will just need the correct length pushhrods. ATK HP74 Chevy 350 Vortec Base Engine 315HP, Call 866-721-2315 to Speak with an ATK Crate Engine Specialist. The L59 engine is a 5. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. If you are still running the singl cat Vortec 305 exhaust, swapping to the dual cat Vortec 350 or custom 2 1/2" headpipe setup along with headers is worth over 30hp. 414/428 lift) so there is a bit more to that cam than the TBI one. After 1996, GM installed the Chevy 305 in small Chevy and GMC trucks and SUVs and renamed the Vortec 5000. and also get new cam and lifters. I'm researching a new camshaft for my 1999 350 vortec engine (L31) (in a suburban). An improperly set camshaft sensor may set a P1345 DTC code, extended cranking. 457 Lift 262 duration @. 428 valve lift on the ex side. How to Get More Power From Your LM7 These engines started life in GM trucks, but there’s just as much of a chance today that you’ll spot them under the hood of a turbocharged drag car. 50" exhaust valves that are sprung with L31 valve springs. Most 1993+ V6 cars and trucks. The Vortec heads offer great intake port flow despite the rather small 1. 10241264 casting number. Aw5087 Water - $55. The result is a cam that makes great torque and horsepower with the 350 HO's 9. 1 to 1 compression ratio. The valve springs from a LT1 are great upgrades for the Vortec engine. The L31 is a good Vortec head engine. 3 intake manifold bolts. I own a 00 Chevy K3500 single cab with the vortec 7. The first thing I would do to the L31(if money wasn't an option) would be the injection upgrade. 92 | 30% OFF. 500" valves from the factory and the stock valve springs are compatible with a maximum valve lift of up to 0. 5 out of 5. 0L (owned by the tax payer in all of us) Solo axle backs. You should check it out. Intake / 206 deg. The iron block, aluminum head engine is available with a crate engine kit. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. 3:1 compression, Lunati Voodoo 101grind (256/262 dur,. NEU! GM CHEVROLET VORTEC 5. Well it appears I once again have the cracked head/coolant loss issue on my 2005 Silverado. Joined: 10 Oct 2006 Posts: 306 Location: Statesboro, GA - '96 C1500 RCSS: Radixed 6. I'm gonna stay at 350, probably gonna keep the existing crank and rods, and just get a rebuild kit with new pistons. I pulled the cam, and tried to run the casting numbers off of it with no luck. If it's in fact a L31 (5. 99 L31/4L60E - tranny programming; LT1/T-56 Swap; lq9 in my 02 blazer extreme? LT1 ino 96+ 2. I have a 98 Z71 as my daily and it moves my 5,000 lb truck quite well. chevy 350 96-2000 comp engine 96-2000. Sales & Support. This engine is not intended as a replacement engine for EFI but as an upgrade to older model applications. I have run a best of 12. 1 Fel-Pro 260-1735 Complete Gasket Set. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Their true strength is low lift flow which gives more area under the total flow curve which is where valves spend most of their time during engine operation. I pulled the cam, and tried to run the casting numbers off of it with no luck. L31-R LONG… Pump Make/Model - Weldon Racing High Performance… Pump Make/Model - HO300-242 Holley 351W Ford Hi-Ram… MapTun Performance Upgrade for Saab 9-5 2. 73 50 TBI motor in my truck, had something go I need to replace so while I'm in the motor I might swap the heads and I take manifold for vortec. Smartest power/efficiency upgrade for 94 TBI 350 Discussion in 'Engine Topic' started by woody80z28, Apr 19, 2011. 7L Tahoe was a total lost cause for tuning. This cam is great for additional bottom end torque. 64-cc combustion chamber. Each MABBCO® short block is custom assembled as ordered,. 7L L31 is the premier industrial workhorse, providing the power needed to get the job done without sacrificing fuel efficiency or durability. 7L Part 1 LS6 Valve Springs On A SBC L31 Vortec Part 2 Of Cam Swap Pro's and Cons of Modifying A L31 Vortec VS Doing A LS Swap. Climbing the mountain passes of Washington State / Oregon, some of which are more than 6000 feet in elevation, is where the biggest improvement was felt. 550″ valve lift. With the vortec heads and other L31 engine parts, I believe this is good for 290 - 300 HP depending on intake and carb. With 383 cubic inches, you also get a broad torque band that peaks at 444 lb,-ft, at 3000 rpm with 323 horsepower at 4200 rpm. Either way I am thinking about getting a set of Vortec heads with 1. We test this engine with an aftermarket. The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3. Find great deals on eBay for 5. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but without the reverse-flow cooling. Converting a L31/vortec 350 wiring harness for stand alone I am preforming this swap and honestly I dont want to pay 700 dollars for a stand alone harness when I have the complete harness already. 160 is probably a 4. 34-1 might not cut it. It is the last production Generation I small-block from Chevrolet. 3L produced 359 hp at 5,300 rpm and 384 lb-ft of torque at 4,200 rpm. I have Vortecs on my OT car with a generic 300hp cam and 1. 459 Lift 257 duration @. 87 SS Roto-Fab CAI, Solo axle backs L77 DOD Elimination and Cam Upgrade. The Vortec 5700 L31 (Vin code 8th digit "R") is a V8 truck engine. also, vortec springs aren't that great, and are only good up to. I have looked into a bunch of upgrades and bolt on kits but it seems that everything comes at the expense of the computer. I am soon going to be getting the keys to my father's 1997 Chevy Silverado 1500 4x4. I want to go ahead and get the Edlebrock performer MPFI conversion kit, and possibly new L31 Vortec heads while were doing the rebuild. Set total mechanical advance timing at 35 degrees. I think the LT1 cam is on a 117 lsa, versus the stock L31 at 111 lsa. If installed in one of these trucks, a custom computer re-program is needed. I would not hesitate the L31 swap. Specs: RPO - L31 1986-2000 style block, 1pc rear seal 4 bolt mains -(No mechanical Fuel Pump Provision) Nodular Iron Crankshaft Powdered Metal Connecting Rods Hypereutectic Pistons 9. 474-inch intake and. This kit will make 9-10 PSI on a stock vortec 350 and is designed to fit all 96-02 1500,2500,3500 trucks both 2 and 4WD. The local junkyard is a u pull with a l. You are looking at a grand-plus for that setup though. Short-Block The foundation of Cheap 350 is an econo, stock-replacement short-block. Budget is a concern here, because the truck is my beater and the Camaro. Unlike other 5. For intake you will need one that will bolt up to the vortec heads and work with a 4bl carb. Would that be heads too ?? How do i get my motor the extra 40 HP ?? will a vortec intake manifold and carb make that much of a difference. I have a 1998 GMC Sierra with high flow intake and throttle body space plus. More complex and a little more expensive: rebuild the rochester Quadrajet carb. For a primer on the entire LS engine universe, read LS Engines 101: An Introductory Overview of the Gen III/IV LS Engine Family. 3 vortec engine specs. I went back to the psi/IFR calculator,for our year trucks/5. The local junkyard is a u pull with a l. I have a RamJet 350 in my '55 Belair. It has the 5. L59 denotes a flexible fuel version, while the LM7 is a special low-emissions engine. Here is the Build: 98 L31 vortec motor (350) changed intake for a blow through carb setup cam 208/220 dur 470/. 59 shipping. This cam is just a little better than a RWD LT1 Cam (260hp) and even more than a Vortec 350 cam (255hp). with vortec heads and I wanted to make a upgrade to my cam and get some more HP. It is a pretty conservative cam for a 350 vortec, like others have mentioned you can build more power with a more aggressive cam, but I can attest to the fact that they idle nice and are very well behaved. 160 is probably a 4. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet. Re: Vortec and 4l80e transplant by 74Malibu383 on Thu Apr 12, 2012 6:09 pm I don't know if the difference in wheelbase will give you enough room to slide the transmission crossmember back, but I know you can't do it on the 2 door Malibu's. This engine was designed as a direct replacement for 1996-2000 Chevy & GMC pickups, SUV's, and van applications. 025 deck, pure flat top, and you use a thick head gasket (. I am building a 98 vortec 350 for my camaro. For 1996-2002 Chevy Sbc Small Block 5. Easy to use parts catalog. Originally, the stock #906 casting head was available in two versions. I was hoping I would not have to deal with this again but I am still loosing coolant and cannot find any other explanation aside from a cracked head or possibly leaking gasket. 5:1, custom length Manley pushrods, Edelbrock Performer intake, Holley fuel pump, Edelbrock 750 cfm carb, MSD Streetfire Dizzy, Taylor spark plug wires, modded 700-R4, 3:55 rear gears, TCI roll control. It is the last production Generation I small-block from Chevrolet. 7L-350ci-V8 Engine Torque Specs. 457 Lift 262 duration @. Way To go guys! Just when I thought that my 1999 5. We've got all of the accessories, brackets, and wiring out of the way, tomorrow the heads are coming off and going to the machine shop to get checked and surfaced if needed. 500 lift/112 lobe seperation head work done to acommodate the cam quick fuel 650 ban T3 ebay turbo. 1987-00 Sb - $59. More exhaust duration really helps out the vortec head. The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the older heads. Cylinder heads. Camshafts with more than 0. My understanding was it was the intake and the carb that made the extra 40 HP. Hi, I have a stock 270 HP magnum 350 carb motor. NEW MERCRUISER 350 CRATE ENGINE350 CID/325 HP ;This is an all new 350 marine engine that includes vortec heads,roller cam,Edelbrock carb , T5 ignition with knock sensors,mechanical fuel pump,stainless valves,aluminum intake ;a great option to upgrade your older boat or as the base for a new build. They have an intake designed for the Vortec heads even. (89 block, 525 lift cam 110 L/C 4 deg advanced, 97 Vortec heads, modified intake for port injection running MSIIextra) V8 camaro T5 trans. I could be wrong but I thought that 95 was the last year for the 5. Can use the vortec heads. 1 to 1 compression ratio. For 1996-2002 - $138. with vortec heads and I wanted to make a upgrade to my cam and get some more HP. It is a pretty conservative cam for a 350 vortec, like others have mentioned you can build more power with a more aggressive cam, but I can attest to the fact that they idle nice and are very well behaved. I've got a friends '97 Silverado in my driveway with a blown head gasket, it's got the L31 Vortec engine. Engine Type: Chevy Small-Block V-8. If installed in one of these trucks, a custom computer re-program is needed. Can be machined for 2. The L31 series engine was the motor that was selected to move GM into the future. 10 ring &pinion. Joined: 10 Oct 2006 Posts: 306 Location: Statesboro, GA - '96 C1500 RCSS: Radixed 6. 6L Duramax Turbo Diesel Trucks – LB7/LLY/LBZ/LMM. I've got 10. Vortec L31 engine HP+ setups to fix the car because i believe the cam has wore out and i want to upgrade for higher HP. I agree with Glenn in advising that you upgrade to Bravo. 5:1, custom length Manley pushrods, Edelbrock Performer intake, Holley fuel pump, Edelbrock 750 cfm carb, MSD Streetfire Dizzy, Taylor spark plug wires, modded 700-R4, 3:55 rear gears, TCI roll control. We offer custom ECU mapping for most GM vehicles: All 1993+ and up LT1 cars. This block is identifiable by its 1pc. For nearly 50 years, we've fueled the passion of automotive enthusiasts. 0l Vortec Lq4 625625 Cam. In a nutshell, the article stated that if your cam lift exceeds. This definition file supports the following vehicles: 2013 - 2016 Buick Encore 1. LT4 Engine Comparison Supporting Vendors / Dealers - Advertising - Shop 1995 Corvette Center. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. I am getting a complete stock 350 vortec motor to go in my 79 MC. 490, I'll use valves that have. This MABBCO® Remanufactured Short Block is for a GM Chevy 5. also, vortec springs aren't that great, and are only good up to. Stock replacement (1996-newer Vortec plastic timing cover) to beautiful black anodized machined 6061 aluminum. Meet the hidden gem that helped start the LS-swap craze. If I designed my own cam, I would go for a. The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3. The heads are equipped with 1. In the 21st century, the Vortec was placed in vans and some commercial automobiles until 2003. Call for details. the hp is 255 for the L31 and 260 for the LT1. The article you posted refers the the max lift on these vortec heads is. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. 490, I'll use valves that have. General Motors created its 5. This cam is great for additional bottom end torque. Patterned from the design of the LT1 cylinder heads from the 1992-96 Corvette, the Vortec iron heads were first used on the fuel injected 1996 pickup truck RP0 Code L31. 1L to 525 horsepower & 580 ft-lbs of torque. head #906or 062. for this you need to replace the intake manifold, distributor and add a carb. I have had a few people doing conversions from 4. I have run a best of 12. With 383 cubic inches, you also get a broad torque band that peaks at 444 lb,-ft, at 3000 rpm with 323 horsepower at 4200 rpm. The GM LM7 (Vortec 5300) features V8 90° cast-iron cylinder block with a five-bearings crankshaft, two aluminum heads, single one-piece cast camshaft and two valves per cylinder (16 in total). All 1996+ Vortec trucks. 10 ring &pinion. By performing this upgrade you will notice a smoother idle, better throttle response and all-around better performance. 3 swap to either 4. The '96-'02 L30 & L31 engines are still a GEN I small block, just with some upgrades. 620" from the end of the camshaft. 3L, we set up a test. Intake Exhaust. 0? Replacements for a V6. Will this cam work with a 4. III iron-block engine used in GM trucks and SUVs between 2002 and 2007. If I designed my own cam, I would go for a. Would that be heads too ?? How do i get my motor the extra 40 HP ?? will a vortec intake manifold and carb make that much of a difference. Straight spark plugs. 61 Vortec 8. He wants to do a little head porting and a cam upgrade while it's. I installed flat top pistons and a comp cam 268XFI cam. I've seen a few different aftermarket Vortec sytle heads. Intake Manifold, Vortec Head Design for TBI $504. The Ramjet gets it's boost from the 109 LSA & it's timing,along with some added lift vs longer durations. If installed in one of these trucks, a custom computer re-program is needed. With 383 cubic inches, you also get a broad torque band that peaks at 444 lb,-ft, at 3000 rpm with 323 horsepower at 4200 rpm. The Vortec combustion chamber (right) has a radical heart-shaped design. They also have the plastic Vortec timing covers (Dorman 635-505) for under $27. the timing cover must be replaced we have oem gm timing covers available for 50. 1-877-666-8679. Displacement is 5. 4L L4 2012 - 2015 Chevy Cruse 1. 6 S0HC VIN ''W'' 2001-2001 Premium Block Kit. The result is a cam that makes great torque and horsepower with the 350 HO's 9. 3L produced 359 hp at 5,300 rpm and 384 lb-ft of torque at 4,200 rpm. Featuring a cast iron block and aluminum heads the LM7 engine became one of the most popular out of the Vortec series. It is the last production Generation I small-block from Chevrolet. as far as cold air intake goes i have always felt like it is a waste of money to but a. Ford Small Block 302 Aluminum Heads '' PAIR '' COMPLETE 62cc Chamber 175cc RUNNER. 050" lift on a 112 LSA (I would go with elgin cam kit from compitition products) good cam, great price. Vortec (L31) heads on your block to raise compression and air flow (probably gotta do rockers, pushrods, etc) Gotta do the research. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 5:1, custom length Manley pushrods, Edelbrock Performer intake, Holley fuel pump, Edelbrock 750 cfm carb, MSD Streetfire Dizzy, Taylor spark plug wires, modded 700-R4, 3:55 rear gears, TCI roll control. Another good upgrade is the stock Fbody LT1 cam. Drop some performance into your Street Rod, Muscle Car or Truck with these genuine GM Performance engines! All GM Performance engines include a 24 Month 50,000 mile warranty. I was at the boat show today and i saw a vortec for sale at a motor vendor and it was 310 HP (Carb). 3l Vortec Swap, Axle swap, King Coilovers ARB Air. Trending at $113. The L31 replaced the L05 in 1996 – known as the Vortec 5700. 480 I think, correct me if I'm wrong). This block is intended for Vortec fuel injected applications. Their true strength is low lift flow which gives more area under the total flow curve which is where valves spend most of their time during engine operation. 1-877-666-8679. I don't want to bench race him on this issue without some ammo. This block is intended for Vortec fuel injected applications. ARP Re-torqueable High Strength Head Bolt Kit. 3-liter LM7 engine replaced it. 0L Big-Block does the job like no other engine. I installed flat top pistons and a comp cam 268XFI cam. I STROKER KIT 10. Add the new dual plane intake manifold P/N 12496820, 600 cfm carburetor, HEI distributor, torsional damper, water pump and exhaust manifolds or headers and you've got an outstanding muscle motor with a broad, smooth torque curve and an. With iron heads that is going to be 89-91 octane territory, but very do-able. In addition to the impressive head flow, the L31 also featured a hydraulic roller cam and a power rating of 255 hp and 330 lb-ft of torque. 428" Intake duration @. 466-inch lift, so building a street Vortec-headed small-block demands a cam with at least 0. The engine can support fuel injection and also has a provision for a mechanical fuel pump. CAMSHAFT SPECS: Lift Int. 428 valve lift on the ex side. Part number 12530282 is the Light Duty replacement engine direct from GM Powertrain and fits most 1/2-Ton Silverado's, Sierra's, Tahoe's, and Yukon's. Get a set of beehive springs, retainers and locks for your iron Vortec heads. Chevy V8's with 1996 and later Vortec (L31) cast iron or Edelbrock E-Tec aluminum heads. By performing this upgrade you will notice a smoother idle, better throttle response and all-around better performance. The vortec is roller. The normal price of these engines is $100 more. The L31 was the last engine to come out of the first-generation of Chevy small blocks. This (NOS) new roller camshaft is out of the vortec engine made for marine applications. This cam is great for additional bottom end torque. 414/428 lift) so there is a bit more to that cam than the TBI one. Add the new dual plane intake manifold P/N 12496820, 600 cfm carburetor, HEI distributor, torsional damper, water pump and exhaust manifolds or headers and you've got an outstanding muscle motor with a broad, smooth torque curve and an. OBD2_46 Release:The OBD2_46 Vehicle Definition File is now available. Holley just brought EFI within range - introducing Sniper EFI!. But today, even a stone stock 5. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. Lots of options on that high torque 383. You could use a stock intake manifold for the 1996-2002 L31 Vortec 350's/305. 5psi) would need to see a presssure regulator/pump pressure of 64. Simply swap the intake manifold, throttle body, exhaust manifolds and other accessories from the original 350. This modern Big-Block is equipped for a crank-triggered ignition system and features a 4X camshaft and 58X crankshaft reluctor wheels to support it. 0L 305 heads. I went back to the psi/IFR calculator,for our year trucks/5. The 1996-2002 5. 475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance. Exhaust =. I pulled my cam out on the weekend (Stock L31 vortec motor) and two lobes are fooked right up Pics below!-Cylinder 3 intake valve-Cylinder 1 intake valve I was planning on a new cam anyway, but I have one hydraulic lifter that has a damaged roller (sorry, no pic), The roller on Cylinder 1 intake doesn't show any damage visually. Larger Plenum and Runners Maximizes Other Upgrades Based on the powerful Performer RPM Vortec #7116, this single four-barrel intake is designed for 262-400 c. Amazon has them (Standard Motor Products part number:PC123) for under $30. The Vortec-style intake is needed because the Vortec heads feature intake bolt-holes that are vertical and not angled. Gen III/LS Series small block (cam retainer plate bolt kit) Cam Bolt Kit. 1 to 1 compression ratio. 96-02 Vortec L31 350 Procharger Supercharger Kit - $2500 (Port Huron) This is a like new Procharger Supercharger kit, P1SC Head unit, 2 core intercooler. That will be a mixed setup. As such, the L31 head is compatible with all. A cam from crane, elgin, howards, summit brand, comp, etc with around 214* intake / 224* exhaust duration @. 7 350, not a Vortec, my mechanic tells me that is a rock solid engine and I should be able to get 300,000 out of it with regular oil changes. Cylinder heads. The first thing I would do to the L31(if money wasn't an option) would be the injection upgrade. Run on the dyno with the stock LM7 cam, the mildly modified 5. swap 305 vortec to 350 vortec; swap a tired 5. I have checked in to the cam swap and found more than I bargined for. 459 Lift 257 duration @. 7 vortec zz4 hotcam 36lb injectors custom mapped ecu howard theall lt4 hot cam install in l31 vortec 5. The Vortec 5300, or LM7/LM4/L59, is a V8 truck engine. New Camshaft Position Sensor for Honda Civic Accord CR-V Element TSX 37510RAAA01. 3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans. 414" Exhaust Lift-. Conclusions. 414/428 lift) so there is a bit more to that cam than the TBI one. I've got a friends '97 Silverado in my driveway with a blown head gasket, it's got the L31 Vortec engine. Re: Best performance upgrades for the buck. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet. More complex and a little more expensive: rebuild the rochester Quadrajet carb. Here are the engine specs 1986-2000 style block, 1pc rear seal 2 bolt mains -( No mechanical Fuel Pump Provision) Nodular I. 3 intake manifold gasket. 1 to 1 compression ratio. Crower was founded in 1955. By performing this upgrade you will notice a smoother idle, better throttle response and all-around better performance. 3l Vortec Camshaft Genuine Oem 12568989. No matter what you're driving, we have the right Vortec Supercharger for your automobile. At Crower, performance is our business. (not aluminum LT1) That's right, no machine work required to set up a pair of these heads. 96-02 Chevrolet GMC 350 5. The first thing I would do to the L31(if money wasn't an option) would be the injection upgrade. The L33 is made for the pickup trucks. 3l intake manifold. 00 Core Charge $350. Use a K&N or similar intake tube with a low-restriction filter and dual 2. rear main seal, 4-bolt main, #880 block casting number, and roller camshaft. The HT383E is an emissions-legal, direct replacement for the L31 5. These engines are built with the 4-bolt heavy-duty hand picked Chevy small block. 7 vortec rebuild kit and 5. 95 Chevy Gmc 4. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. Our original answer combined the Chevrolet Hot cam with a set of these Vortec heads. 3L vortec not a 5. Gen III/LS Series small block (cam retainer plate bolt kit) Cam Bolt Kit. are of little to no value to the auto recycler (wrecking yard) except for the actually scrap metal value. Nothing compares to a Factory Original new GM Crate Engines when it is time to replace the worn out 350ci Vortec engine in your 1996 thru 2002 Chevrolet or GMC pick-up and Vans. The right length engine pushrods for 5. If installed in one of these trucks, a custom computer re-program is needed. 050”: 196 deg. if your going with a bigger cam, you need to upgrade the valve springs. 3 liter Vortec. 454, Chevy, Small Block, Kit ( 8 ) Part Number: CCA-CL12-234-2 More Detail. Good prices of Marine Gm and related items. L31 Vortec 350 HD 3/4 ton and 1 ton trucks over 8600gvrw 5. '77 350 4-bolt bored. (joe)>> we don't have to tell you that 350 small block builds are about as common as lawn chairs at a car show. This block is intended for Vortec fuel injected applications. You are looking at a grand-plus for that setup though. I don't want to bench race him on this issue without some ammo. Converting a L31/vortec 350 wiring harness for stand alone I was curious if anyone had any pictures or a write-up on what to remove from the factory l31 harness for stand alone operation. They do tend to get too lean really easily. 0L 305 heads. 7 vortec zz4 hotcam 36lb injectors custom mapped ecu howard theall lt4 hot cam install in l31 vortec 5. 3 L) as the base engine for the all new 1978 Chevrolet Malibu. Restored, Retuned, and Rebuilt. Don't qoute me, but I think that cam demands high compression. CHEVROLET PERFORMANCE LS9 CAMSHAFT NEW GM # 12638427. 457 Lift 262 duration @. Don't bother with a throttle body spacer, waste of money on these trucks. They are designed to increase horsepower and torque in your LT4. An improperly set camshaft sensor may set a P1345 DTC code, extended cranking. (Little less vacuum, single patterned cam but best sound. The reason I ask is becuase I have a 350 H. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. This cam is great for additional bottom end torque. 7L) 260 HP vortec upgrade - I've done my research (thanks you OSO members) and have decided to do the vortec head upgrade to my 1986 chevy 350. Chevrolet offered the 5. That'll make it easy to set up the triggering. rear main seal, 4-bolt main, #880 block casting number, and roller camshaft. If installed in one of these trucks, a custom computer re-program is needed. upgrade the stock snorkel to a higher flowing air filter. If you are still running the singl cat Vortec 305 exhaust, swapping to the dual cat Vortec 350 or custom 2 1/2" headpipe setup along with headers is worth over 30hp. 07 in) throttle body. Another notable difference is that the Vortecs have smaller combustion chambers, which up the compression about 1. The stock Vortec springs and retainer to guide clearance is only good to a max of. You could use a stock intake manifold for the 1996-2002 L31 Vortec 350's/305. The reasoning for this transition was to improve on the 1500's fuel economy and reduce its emissions output. Marine Gm Chevy 5. JEGS crate engines feature a 36 month/unlimited mileage warranty. I've got a friends '97 Silverado in my driveway with a blown head gasket, it's got the L31 Vortec engine. 6 sohc cylinder head 02-06 reman brand new cam! chevy performance 302-350 906 vortec cylinder heads. We've got all of the accessories, brackets, and wiring out of the way, tomorrow the heads are coming off and going to the machine shop to get checked and surfaced if needed. The L31 Vortec 350 that was installed in all GM half ton trucks (Pick-ups, Tahoes, Suburbans, Vans) put out 255 hp and 330 lb-ft. The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3. I'm now wondering where the best place to purchase the required parts and speak with someone to make sure they will bolt on. You should check it out. Home of DIY tuning for the '411 PCM. Displacement is 5. This 3rd generation Vortec was introduced to the market in 1999 and can be found in trucks and SUVs like the Cadillac Escalade, Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, GMC Savana, Sierra, Yukon and Yukon XL. If installed in one of these trucks, a custom computer re-program is needed. Product Details. This block is intended for Vortec fuel injected applications. NEW MERCRUISER 350 CRATE ENGINE350 CID/325 HP ;This is an all new 350 marine engine that includes vortec heads,roller cam,Edelbrock carb , T5 ignition with knock sensors,mechanical fuel pump,stainless valves,aluminum intake ;a great option to upgrade your older boat or as the base for a new build. That engine IS a 4 bolt main L31 with a different cam, 1. The iron block, aluminum head engine is available with a crate engine kit. This cam is great for additional bottom end torque. Set total mechanical advance timing at 35 degrees. 431” Intake /. Suggested Retail: $9999. 475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance. 7L small block featuring Vortec cylinder heads that were developed for maximum power and efficiency. chevy 350 96-2000 comp engine 96-2000. My plan is to run it 2-3 years by that time I will find something to swap it for. Page 1 of 2 1 2 Next > Apr 19, 2011 #1 I wouldn't be against an L31 long block and reusing the Vortec cam & heads if I can find one for a decent price. Read a review and see pictures of the 1996 Chevrolet C/K Vortec V-8 Pace Truck at Car and Driver. Engine L31 5. 050" - 196* Lobe Centerline- 111. I pulled my cam out on the weekend (Stock L31 vortec motor) and two lobes are fooked right up Pics below!-Cylinder 3 intake valve-Cylinder 1 intake valve I was planning on a new cam anyway, but I have one hydraulic lifter that has a damaged roller (sorry, no pic), The roller on Cylinder 1 intake doesn't show any damage visually. The L31 was replaced by the 5. Amazon has them (Standard Motor Products part number:PC123) for under $30. Types of GM Vortec Heads. If installed in one of these trucks, a custom computer re-program is needed. Specs: RPO - L31 1986-2000 style block, 1pc rear seal 4 bolt mains -(No mechanical Fuel Pump Provision) Nodular Iron Crankshaft Powdered Metal Connecting Rods Hypereutectic Pistons 9. 5psi) would need to see a presssure regulator/pump pressure of 64. Pistons, Rods, Bearing, etc. 435" Intake /. I'd just leave it in there, however I am swapping to a set of vortec l31 062 heads which I cannot have more than a certain amount of lift (. i had the machine shop do it before i put the engine togther but they still weren't wide enough, so now I'm doing it again with a 31/64 drill bit. Find Chevrolet Performance LT4 Hot Cam Hydraulic Roller Camshafts 24502586 and get Free Shipping on Orders Over $99 at Summit Racing! These LT4 Hot Cams from Chevrolet Performance are direct replacements for your stock LT4 hydraulic roller cam. These vehicles introduced the L31 5. 050" - 196* Lobe Centerline- 111. 3L pulled. Dart OE Vortec replacement head 165cc intake runner; RHS Vortec (available with either 1. Add to Wish List Add to Compare. I was at the boat show today and i saw a vortec for sale at a motor vendor and it was 310 HP (Carb). 451” exhaust Cam Duration @. Im starting to plan ahead on modifying it and am in need of advice. Exhaust =. 3-liter LM7 engine replaced it. 600 lb-ft is possible but very expensive with a small block. L31-R cam upgrade Engine Building, Hi Performance L31-R cam upgrade - TriFive. The L31 replaced the L05 in 1996 – known as the Vortec 5700. All 1996+ Vortec trucks. I went back to the psi/IFR calculator,for our year trucks/5. Dropping in an LT1 or an LT4 cam would make a large difference in power, but be mindful of the lift limitation of the stock spring/seal/retainer. the hp is 255 for the L31 and 260 for the LT1. Exhaust Lobe Separation: 109 Degree. 3837065: 1955 and 1956 265ci, 65cc chambers, 1. Tbi350 vortec heads 23 Answers I have a 5. Drop in fit,. Here is the Build: 98 L31 vortec motor (350) changed intake for a blow through carb setup cam 208/220 dur 470/. 470 lift, with a LC of 107, duration of 201 intake, 206 exhaust. 5 so I think we'll be good as long as its also available thru the 411 pcm (with a 01-02 L31 express van file base) Thanks for the help Paul!. General Motors created its 5. 07 in) throttle body. 600" valves. My heads were set up prior to me getting them with 202's and was redrilled and tapped for the standard intake and the OEM bolt holes welded up. 190cc Street Head Flow Chart. I recommend upgrading to the 1996 Vortec 155lph fuel pump which can support up to 450hp and plugs right into a factory TBI sending unit. 5 Degree Cylinder Heads: Vortec Cast Iron, 3/8" pressed-in rocker studs Combustion Chamber: 64cc Valves:. 1L to 525 horsepower & 580 ft-lbs of torque. another good head to look at is the World Torquer S/R's. Requires Vortec-specific intake manifold. 7 Vortec Performance Restrictor Plate? - Hey guys, I'v been searching around for ways to increase the performance of my Tahoe and someone mentioned that the 5. 1L / 496cid Intake Manifolds. Mechanically similar, General Motors’ LS and LS-based. 420, you need to run upgraded springs. 3 Vortec hit the market and was used in Cadillac, Chevy and GMC trucks and SUVs. 7L L31 Features & Specifications 5. 92 | 30% OFF. Look at the 4. also, vortec springs aren't that great, and are only good up to. 160 is probably a 4. The Vortec 8100 isn't super impressive in stock trim, but it's designed for heavy duty work. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. The Vortec 8100 isn’t super impressive in stock trim, but it’s designed for heavy duty work. This (NOS) new roller camshaft is out of the vortec engine made for marine applications. See our Water Pump - High Performance Competition Aluminum. 500 lift/112 lobe seperation head work done to acommodate the cam quick fuel 650 ban T3 ebay turbo. They are designed to increase horsepower and torque in your LT4. I want to go ahead and get the Edlebrock performer MPFI conversion kit, and possibly new L31 Vortec heads while were doing the rebuild. Anoth Vortec specific PID that was recently added is {GM. 0L multiport fuel-injected engines were installed in many 1996-2000 lightduty Chevrolet/GMC trucks, SUVs, and full-size vans. 7 vortec rebuild kit and 5. It was a long time ago. 32 Chevrolet Performance Valve Stem Seal ZZ4, Fast Burn 385, L98, LT4, L30, L31 Vortec heads $1. This cam is great for additional bottom end torque. 475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance. What engines will fit in my truck I want a performance. Part # - 574120B $1900. 7 L small block V8 whose origins date back to 1955. The L31 stock Vortec heads are hands down the best flowing heads gm ever put onto a small block that’s is production. 600 valves) EQ "Lightning" Vortec Style Cylinder Heads (Cast Iron) On the non-bow tie L31 Vortec heads, the ports are larger than the older cast steel heads, so they outflow the older heads. But there’s the rub. The XR276HR offered a 0. 7 (UPDATE) PICS ADDED As the title states i'm in the middle of swapping from the stock intake with internal poppet injectors. That said, just did (last summer) an L31 Vortec build on my 1998 K3500: 1) GM Goodwrench stock 4 bolt replacement short block. 510-inch lift split, a 224/230-degree duration split, and 110. 00 w/free. 7L Tahoe was a total lost cause for tuning. Vehicles over 8600 GVW. 7 vortec do not have stander length or the lifters like to know more about it - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. HI Ford RMF 281LP 4. Another notable difference is that the Vortecs have smaller combustion chambers, which up the compression about 1. This topic is now archived and is closed to further replies. Intake lift-. 6L Duramax Turbo Diesel Trucks – LB7/LLY/LBZ/LMM. Just cause they're different motors, dosen't mean things won't exchange out. This cam is great for additional bottom end torque. To complement the cylinder head design, GMPP incorporated a steel roller tappet camshaft with. 451” exhaust Cam Duration @. Our estimate then and now is around 350-375 horsepower. The cam that comes with that engine is pretty small. It is the L31 engine 5. and also get new cam and lifters. 470 lift, with a LC of 107, duration of 201 intake, 206 exhaust. Another good upgrade is the stock Fbody LT1 cam. Most cars, even old muscle cars have relatively low hood clearances. 3L Vortec 5300 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More. 7 vortec and if it is a pain in the ass to install a carb and installing a manifold. 414" Exhaust. this seems to be a highly recommended head for the 305. The stock cam that comes in the L31 350 vortec has a. Most 1995+ 4-cyl cars and trucks. This engine is the only one available with the reliability of a carb engine but with knock. For one your valve springs will bind, and the retainers will hit the valve guides and seals. Camshaft Fits 07-15 GMC Camaro 5. L31 Vortec Heads For a very good, professional write-up on the Vortec heads, go to this Chevy High Performance article. This listing is for a replacement Roller Camshaft and Lifters for 1996-2002 Vortec 350 5. Monday - Friday, 9am - 5:00pm EST. 6 at 108 mph with that cam in my 96 impala, at a race weight of 4400 lbs, and still get 22 mpg on the highway. The cam has 204/214 duration with 0. 34-1 might not cut it. Intake / 222 deg. Mar 03 2013, 8:56am. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the L31 Vortec 350 Engine. This page covers just the basics of the CPI and CSFI engines from 1992 through 2004. Camshaft: Hydraulic Flat Tappet Cam Lift:. as for redrilling the L31 vortec heads to the old intake bolt pattern- you can do it, and the intake will bolt up and seal the water jackets- but about 1/10" of the top of each intake port will be wide open unless you use a Bow Tie or Edelbrock tall port intake for it. The normal price of these engines is $100 more. great head for a 4x4. If you are still running the singl cat Vortec 305 exhaust, swapping to the dual cat Vortec 350 or custom 2 1/2" headpipe setup along with headers is worth over 30hp. I would not hesitate the L31 swap. Was: Previous Price C $264. If money is an option, all I can reccomend is the typical go-fast mods. 5L Ecoboost F150. 3 vortec engine for sale in ga. At least the cars did get a roller cam which helped them make the 170hp GM claimed they would make but the trucks don't even come close. By performing this upgrade you will notice a smoother idle, better throttle response and all-around better performance. if your going with a bigger cam, you need to upgrade the valve springs. This (NOS) new roller camshaft is out of the vortec engine made for marine applications. 4 bolt main block. 5:1 I believe on the L31 engine. 480 I think, correct me if I'm wrong). The cam has 204/214 duration with 0. Avoid the LT1 Z28/Vette cams and the LT4 cams. It is an all-around bad *** cam. 4 w/NV4500 5 speed & 4. If you are going as far as swapping heads and cam, you should also round off the package with a good manifold. 74; Buy It Now +C $50. i had the machine shop do it before i put the engine togther but they still weren't wide enough, so now I'm doing it again with a 31/64 drill bit. As such, the L31. In CARCRAFT magazine they had a project called "HUMBLE PIE" and they tried out the same cam you have and it just added 7 HP more then the stock cam. As such, the L31 head is compatible with all older small-blocks. 350 364 VORTEC. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet. i pretty much know what im going to do, im just. The engine started out as low mileage 880 L31 that I scavenged out of an conversion ambulance. I have a RamJet 350 in my '55 Belair. roller cam. This MABBCO® Remanufactured Short Block is for a GM Chevy 5. Features new components inside a brand new complete long block engine backed by a limited 3-year/100,000 mile GM warranty when installed into original GM application. as for redrilling the L31 vortec heads to the old intake bolt pattern- you can do it, and the intake will bolt up and seal the water jackets- but about 1/10" of the top of each intake port will be wide open unless you use a Bow Tie or Edelbrock tall port intake for it. The 1996-2002 5. Trucks & SUV's of this era are typically NOT being repaired these days. I was at the boat show today and i saw a vortec for sale at a motor vendor and it was 310 HP (Carb). GM 350 Vortec Crate Engine 351 HP Torque 400. 0L (owned by the tax payer in all of us) Solo axle backs. General Motors created its 5. I used the vortec heads on another project so I bought some chinese aluminum heads. I've got a friends '97 Silverado in my driveway with a blown head gasket, it's got the L31 Vortec engine.
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