Lt1 Vs Vortec Heads

Air Flow Detail #176 SBC All American Head - 185cc Runner. You can get alot of the advantage of an LT1 in your earlygen sbc by using the 5. They are raised ports, heart shaped chamber, high flowing heads. Long nose kits fit most short and long water pump applications. LT1 will perform better stock vs stock than a vortec 5. Conclusion. Priced below KBB Fair Purchase Price! Clean CARFAX. The engines also use direct fuel injection technology, which shoots fuel directly into the combustion chamber instead of the intake runner. Does anyone have any information comparing the lt1 iron and aluminum heads for performance potential. Fuel economy is rated as being slightly better per the EPA, but it's not a huge difference. If you do the swap, don't forget to plumb the coolant bypass next to the thermostat housing (on the intake manifold) to the circulating pump! Vortec heads aren't plumbed like the non-Vortecs to pass coolant between the block and the heads. The 1996 Caprice/Impala heads outflowed the Corvette Aluminum LT1 heads by as much as 20 cfm on the intake side. Texas Speed & Performance is your one-stop shop for all LS and Gen 5 LT1 & LT4 performance parts and engines! We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house!. aluminum cylinder heads. Looking for Chevy casting numbers ? This is a very complete list of numbers to help identify your Chevy engine block, heads and crankshaft. 0L LS7 2005. And they will make or brake your ride’s performance. Dart S/S heads are legal in many racing sanctions with Iron head rules. That was impressive in 1992, but the iron LT1 head that came out in 1994 was even better. Read reviews, browse our car. Both the LS1 and the LT1 are exceptional engines which make tons of power and have even more potential for making monster power. Click Vortec 5. OE Replacement Engine by Replace®. The cast iron Vortec head was in development six months longer than the aluminum head. Free shipping on many items. 5 quarts of Lucas 5W-30 oil. This cam would be nice on stock L31 heads due to their lift limitations, if you use the Vortec Bowtie heads, use a cam with higher lift, or add 1 7:1 rockers on teh LT4 cam for about. This might sound stupid, but I can't get a straight answer on this. 6 2v PI motor. 10185040 Aluminum head, 2nd version, 45cc, angle plug, splayed valve, 240cc port volume 10205245 350 93 Gen II 350, LT1, aluminum head, reverse flow cooling, 175/68cc port volume 10207643 350 94-96 Gen II 350, LT1, aluminum head, reverse flow cooling 10225121 350 94-95 Corvette ZR1 LT5, DOHC 32V driver side. Thses new Chevy heads were not just a modified version of existing heads, but a complete redesign using the 1996 Caprice/Impala SS LT1 cast-iron head castings as a base. Edelbrock Performance Cylinder heads are manufactured of A356 aluminum and made in the USA for AMC, Buick, Chevy, Chrysler, Ford, Oldsmobile, & Pontiac engines. I have some questions. 98 LS1) that it is a drivers race. com and search for bret bauer on some of the other forums. GM's LS engines are the hottest thing to hit the scene since Chevy debuted the first smallblock back in 1955. 00 (max class displacment 305. First engine projectswap just vortec heads onto old block or swap entire vortec? Warkmeister, Jul 17, 2019. 7 vs Vortec 6. Detailed features and specs for the Used 2006 Chevrolet Silverado 1500HD including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. You'll need vortec style intake with it though, your old manifold won't mate up. Just make a plate to mount an electric water pump to pump water through the heads via -10 an through the front of the heads where the steam plugs would be and return the water through the normal block pump mount into a thermostat housing and return to radiator. These babies produce some good horsepower numbers. 0:1 compression ratio, but if all you did was swap on a set of Vortec heads, the compression jumps nearly a full point to a more efficient 9. The idea is to use a 305 vortec head on an older model 350 to pick up the compression ratio and build lots of low rpm velocity for towing. The heads were secured using Fel Pro MLS head gaskets and ARP head studs, while the stock truck oil pan was filled with 4. Six-speed WS6 Pontiac is the product of a '90s GM strike, a paint recall and pure dumb luck. The intake and exhaust port are very similar to Corvette 350 LT1 heads. Nor will the LT1 because of the reverse coolant flow. 9L Whipple Charger, the systems produce nearly 50% more power and are 50-state emissions legal. GM changed the LT1 head design by revising the water jacket so the new Vortec heads could be used on conventionally cooled small-blocks. Your Source For Rebuilt Short Block & Long Block, Automotive & Marine Motors, Engine Kits, Rebuilt Engine Kits, Crankshaft Kits, Cylinder Heads, Engine Parts & Remanufactured Motors. ~Read me pleeeze~ For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. Vortec swap vs 1UZFE Swap - Page 2 an LT1 weighs 562 due to the aluminium intake. Lot's of hot rod parts for either. L31 vs LT1 Discussion in ' heads and all the bolt ons and youll be fine. These heads were only used on a few models of Vortec truck. Then, in 1997, the third-generation small block was released. Chevy Bowtie or LT1 heads. My knee jerk is that the aluminum lt1 must be a better performance head. Trick Flow 215cc GM LS Cylinder Heads, PN: TEA-LS215TF-CUSTOM. They are raised ports, heart shaped chamber, high flowing heads. Same story there as well. Factory Alloy Cyl Heads (1961-63) 215 Engines Only CHEVROLET SMALL BLOCK LT1-LT4-VORTEC V8 153 TEETH STEEL LIGHTWEIGHT COUNTER BALANCE FLYWHEEL (YT9907L). The LT1 prospered from 1992 to 1996 in various vehicles, but its days were numbered. Aftermarket DFI system or you can use a stock PCM in both applications. Your Search for Cylinder Heads and Hard to Find Engine Parts is Over! EngineQuest (EQ) is the engine parts division of A&A Midwest. Chevy V8s with 1996 and later Vortec (L31) cast iron or the new Edelbrock E-Tec aluminum heads. Swapped GM 4. Chevy 383 Stroker Engines. ProMAXX Performance has designed a complete new line of performance heads that meet or exceed the big names in the industry. Chevrolet Camaro LT1- Magnum DI TVS2650 Supercharger System Magnum TVS2650 DI Supercharger System 2016 - 2019 Chevrolet Camaro LT1 w/ Fit Kit (CARB Approval Pending). 3L) cylinder head. The truck engines have a cast iron block with aluminum heads and a different intake manifold with the plenum above the runners. Because of this, there is no water that passes through the intake manifold. This configuration will be my initial starting point. We specialize in stock and performance cylinder heads as well as head bolts, timing covers, harmonic balancers and much more. 2 liter V8 LT1 engine is produced by General Motors for use in performance vehicles and sports cars. Will not fit 1984 to present Corvette due to rack and pinion clearance problems. Vortec 350. Water passages are the same as a standard small block, but intake bolts are different. 1966 Oval port head; notice tapped bosses for spark plug shields. The LT1 has aluminum heads with like 10 to something compression. 350 vortec lt1 cam on test stand don jernigan. mind you that these heads have had work did on them but not as far as the mounting. Click to expand. Idling through a Magnaflow cat back, this was a cam only swap, I used stock L31 valve springs, stock lifters, stock tune. Harris Performance, INC. L31; The L31 replaced the LO5 in 1996 - known as the Vortec 5700. com > Conversion Talk > V8 Conversions. Displacement. A throat cut just past the exhaust valve seat also opens up the exhaust port. LT1 Tuning Kits:We are now offering complete tuning kits for the 1994/95 OBDI LT1 cars. Welcome To The New HowellEFI. but please stick too facts the LT-1 is a good 50 HP better than a L-98. 5 heads comp cam and pro products intake ended up costing less than a used ls1. The big benefit of the LT1 is the intake setup, it isn't as restrictive as the Vortec poppet/spider injection garbage, plus they run a little more compression and have more aftermarket support. Starting in 1996, on several GM trucks and vans, the L31 Vortec heads came on the scene. the lt1 came with a 4l60e so your set. I reused the stock locks. News rankings of these vehicles, buyers seeking a better ride or higher cabin quality will also want to look at the two runners-up in the pickup truck sales race, the Chevrolet Silverado and Ram 1500. (not aluminum LT1) That's right, no machine work required to set up a pair of these heads. Intake flow was improved over previous engines by straightening out and optimizing the flow path from the intake manifold into the cylinder heads, while the exhaust ports are designed for greater flow. Vortec heads will also require an intake manifold with a Vortec bolt pattern. By comparison they litter pick a part, and are just about as capable. (Now with image!) So maybe they are using LT1 casting cores on the Vortec head?. Thses new Chevy heads were not just a modified version of existing heads, but a complete redesign using the 1996 Caprice/Impala SS LT1 cast-iron head castings as a base. Increased from 170cc on the LT1 to 195cc for the LT4. Main difference aside from the block material is the heads, cam, and intake system. Isaiah molina. PROMAXX Performance Products specializes in all types of automotive cylinder head for any budget, carrying Performance cylinder heads, diesel cylinder heads and stock replacement cylinder heads. The cranks are even still round. Let me know what you think or if you see any flaws I havn't yet. What is the best cast iron intake to run on Vortec or Vortec Bow Tie cast iron cylinder heads? The best intake manifold for Vortec style heads is our Marine High-Rise intake. It was good for 180hp, and used a rather dated fuel injection, ignition, and computer setup. The other LT1 cars got cast iron heads. 0L L96 optimize performance, efficiency, and emissions. As you mentioned, the accessories and the carb are specialized for marine use, but the block and heads are just the standard block and heads. 94-up all LT1's and the LT4 were Sequential Fire Injection. At Phoenix Engine, we make sure the job is done right the first time and will not rush our work. First engine projectswap just vortec heads onto old block or swap entire vortec? Warkmeister, Jul 17, 2019. No, the Vortec heads came out in 87' & they ARE the center bolt headsthey are diff from the LT1 heads, but are the same head used today. GM changed the design for the Generation II LT1 small block with aluminum heads and reverse-flow cooling, meaning the heads were cooled before the engine block. This results in keeping cylinder temperature lower and letting the engine run at a high compression. The difference between the two, i believe, is that the LT1 is a reverse flow coolant system, cooling the combustion chambers first before the block (unconventional from the Gen 1 small blocks). These were placed on trucks that used the 350 `96+. Isaiah molina. My LT1 engine has brass freeze plugs in it, so you may not have to change the plugs in your block. Topping the modified short block was a set of CNC-ported, AFR LSX 230 V2 heads. I used LE2 heads and a custom cam and I can only imagine what it would be like to have that engine in the tahoe. We have first and second generation Chevy Vortec engines, too, as well as Dart Iron heads! Ask about our PAY AS YOU GO program. Well if there both completely stock then they should both have V6s in them and in that case they should be about the same, but if they've got LS1 or LT1 corvette V8s which also came stock than the. Modern valve seat cutting equipment can resize seats for larger valves with just slightly more effort than doing a regular valve job. Engines covered: Pre-Optispark small block Chevy V8s with TPI or TBI injection and HEI ignition with electronic spark timing (seven or eight pin HEI module) Much of this article will apply to other 1980s era GM cars including injected big blocks and even fire V6s. hey guys! I'm just about finished with swapping a bone stock lt1 from a caprice 9C1 state police detectives car into a 2wd 97 chevy reg cab shortbed pickup. Isaiah molina. The LT1 intake and cam help it produce more power. Built to outlast and outperform in accuracy and strength, the Ultra Pro Magnum rocker arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. The LT1 prospered from 1992 to 1996 in various vehicles, but its days were numbered. We are always looking for new castings numbers. the vortec heads are really just iron versions of the LT1 alum heads. All Pro Heads is the Industry Leader in Small Block Chevy Aluminum Cylinder Heads, (as well as the new Generation 3 and Mopar W9RP) , catering to the hard core racer always looking for the perfect design for a specific application. Trick Flow products perform as advertised and exceed customer's expectations for performance and value. 2004 Pontiac GTO Wiring Harness Info - Wiring harness info specific to the 2004 GTO LS1. 1 Workhorse. They know how to make LTs run very hard. 97-98 Vortec, LT1 1. On the streets, Turn Key engines can be found in award winners like the Good Guys Street Machine of the Year, built by Roadster Shop, and countless articles in hot-rod/restomod magazines like Super Chevy, Chevy High Performance and GM High-Tech Performance. 3L V8 SFI, 4-Speed Automatic with Overdrive, Sandstone Metallic. Performer Vortec (Idle-5500 RPM) Based on the popular and powerful Edelbrock #2101, this dual-plane intake is designed for the street rod, industrial and engine swap market utilizing 262-400 c. Are the original heads on my '92 CSB 350 engine worth modifying, or are they just junk who should be swapped with Vortec heads or something? By the way, the engine is modified with Air Gap intake, carb, headers, no AC / PS, and 2,5" double exhaust. Dart Iron Eagle S/S 23° 170cc late model and Vortec style heads produce great throttle response and low to mid-range torque for street performance engines. BluePrint Engines builds Ford, Chevy, and Chrysler crate engines. Also the LS1 makes 35-40 more horsepower straight from the factory. 7L vortec heads. Isaiah molina. Vortec heads will also require an intake manifold with a Vortec bolt pattern. I used LE2 heads and a custom cam and I can only imagine what it would be like to have that engine in the tahoe. Factory GM heads are used to define standard valve spacing and angle (thus 23º) for many small block Chevy’s. Manifolds are modified to bolt directly to all Small Block heads without the use of adapter plates! Our Modified LT1 Exhaust Manifolds are modified to match all SBC exhaust port openings. My understaning is they are the same as the LT1/4 & are reasonable priced. Topping the modified short block was a set of CNC-ported, AFR LSX 230 V2 heads. 030" flat top sealed power pistons, eagle rods and crank, XE268 Cam shaft- 1999 vortec cylinder heads, hooker full length performance exhaust headers- combination 330hp 10:1 compression- heads and cam combo for torque- similar to an LT1 350. Isaiah molina. Accessory brackets are different. Both the LS1 and the LT1 are exceptional engines which make tons of power and have even more potential for making monster power. LT1 head valves are too big for the L99 boreyou can't use those heads. I'm not 100% sure if a 5. VORTEC CYLINDER HEADS An easy way to gain 20-40 horsepower on any 1955-and-newer Small-Block Chevrolet V-8 (except later-style LT1/LT4 engines with reverse-flow cooling) is by installing a set of Vortec cylinder heads. The LS1 has several key advantages over the LT1 including, All Aluminum Block and Heads vs. Vortec Heads outflow Bow Tie Heads right out of the box and are a 20 to 40 horsepower bolt-on increase over earlier cast iron small block heads. Being the L05 and Vortec 350 are probably the same, there isn't much there, but in the heads and intakes, there is. Coolant is transferred from head to head by a steam line on the back of heads. What issues can I run into when swapping a LT1? Swapping a LT1 into a newer chassis can pose a few problems, especially if you were originally considering the LS1. The recently released 4. As previously mentioned, the F- and Y-body LT1s got aluminum heads, but they actually flow worse than the B-body iron LT1 heads and the Vortec heads (which have nearly identical port and chamber designs). Ok maybe somebody on here can give me an answer! I'm 22 years old and know a little about the 350 vortecs bc that's all I have and stayed with and my buddy is 19 and thinks he knows more lol of cou. The Vortec head out-flows the bow-tie head out of the box and is a 20 to 40 horsepower bolt on increase over earlier cast iron small-block heads. Roller cam/lifters (the vortec was the 1st gen 1 truck engine to a roller cam, car engines started in'87 with roller cams) Can't use a block mounted mech. Small Block Chevy People told me it won't fit. 10185040 Aluminum head, 2nd version, 45cc, angle plug, splayed valve, 240cc port volume 10205245 350 93 Gen II 350, LT1, aluminum head, reverse flow cooling, 175/68cc port volume 10207643 350 94-96 Gen II 350, LT1, aluminum head, reverse flow cooling 10225121 350 94-95 Corvette ZR1 LT5, DOHC 32V driver side. Lot's of hot rod parts for either. (2) L92 (Vortec 6200) cylinder heads -- its basically the LS7 head and its a reliable, cheap, production piece not some custom job! (3) L76 intake from the Commodore -- the L92 intake won't fit LS2 powered cars, but the L76 will drop right in on the L92 head. Read here about the new exciting 2005 news on LS1 LS2 LS4 LS6 < CLICK HERE > So how is this going to happen in a transverse mounting environment. Without adequate airflow, the engine will never make power. Free shipping on many items. Idling through a Magnaflow cat back, this was a cam only swap, I used stock L31 valve springs, stock lifters, stock tune. I have some vortec heads in the garage and the original LT1 fuel injected intake if you want me to check. Iron heads - a superior head gasket should've been adequate against iron/aluminium electrolysis camshafts - which came 1st … the Ironhead LT1, or the Vortec L31? I forget which is using the other's camshaft profile stupid Helmholtz resonators (which took up the space that would be used by an intake manifold more appropriate to heavyweight cars). Gen 1 SBC are very good motors except they don't get great mileage. Masters of Disguised Heads. This cam would be nice on stock L31 heads due to their lift limitations, if you use the Vortec Bowtie heads, use a cam with higher lift, or add 1 7:1 rockers on teh LT4 cam for about. I belive the L99 and the LT1 intakes are the same. Follow this link for more pics of the 383 LT1 and 305 TPI. 0L swaps, Turbo charging and have experts online 24/7 to help you with any questions you may have. I'd guess they were close to vortec or better, that porting guy was well known. The new Vortec V8s available this year are versions of the LS1 engine found in Camaros and Corvettes. It's basically an iron head LT1 with a smaller bore and stroke. ~Read me pleeeze~ For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above. Intake flow was improved over previous engines by straightening out and optimizing the flow path from the intake manifold into the cylinder heads, while the exhaust ports are designed for greater flow. These fully CNC ported 215cc heads are specifically designed for $2,395. Not bad, I figured if it doesn't work out I'm only out $200. This configuration will be my initial starting point. There are plenty of 355s running down 383s and 396s because they were built right. View pictures, specs, and pricing & schedule a test drive today. Vortec and LT-1 Caprice Car Forums. This production Vortec iron cylinder head was first used on the 1996 pickup truck RPO L31 with fuel injection. Chevrolet Camaro LT1- Magnum DI TVS2650 Supercharger System Magnum TVS2650 DI Supercharger System 2016 - 2019 Chevrolet Camaro LT1 w/ Fit Kit (CARB Approval Pending). If your engine is worn out, don’t just get a rebuilt engine, get one that’s better than new. 460 EDIT : Crazy that article used the EQ vortec replacement head. If you don't see the perfect one for you, contact us and we can build one custom to your specifications. The fittings are black anodized billet aluminum and attach to the corners of your GM LS cylinder heads. If it were mine I would do the heads so you could just bolt on the other stuff, if you are not going to up size the cam that would require head work/removal. They feature all the same benefits and quality components as AFR's Gen I SBC heads. The reason i'm asking is my sons car (96 camaro) came with 643's. 2013 Chevrolet Silverado 1500 LT Silver Ice Metallic Vortec 5. These heads have the swirel inducing combustion chamber and the re-positioned sparkplug like the LT1 heads. 0L V-8 L96 is a heavy-duty workhorse engine. Performer Vortec (Idle-5500 RPM) Based on the popular and powerful Edelbrock #2101, this dual-plane intake is designed for the street rod, industrial and engine swap market utilizing 262-400 c. 350: 12367712: LT1, camel hump heads, accessory holes, straight or. Buy Hydraulic on eBay now! Mackay Front Hydraulic Engine Mount Set For Vn Vp Vr Vs Vt Vx Vy Commodore 3. 3l V8 "Baby LT1" has the L99 production code and is the W in the VIN for B-body Caprices from 1994 to 1996. Not compatible with self-aligning rocker arms. I can't tell you what cam to run, but I like mine. 3L Vortec 6. 7 in the trucks is a Gen 1 with tbi starting in 87 and cpfi a few years later, with the Vortec coming out in '96. Factory GM heads are used to define standard valve spacing and angle (thus 23º) for many small block Chevy’s. Any other casting numbers are not a "vortec" head. And more importantly it was an expensive engine compared to the L05 and soon to come Vortec 350. On the streets, Turn Key engines can be found in award winners like the Good Guys Street Machine of the Year, built by Roadster Shop, and countless articles in hot-rod/restomod magazines like Super Chevy, Chevy High Performance and GM High-Tech Performance. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. I keep hearing that vortec heads are great for stump-pulling torque, which is what I need mostly I think. The LT1 also has a tunnel-ram intake, designed specifically to fit under the cowl of the 4th-gen F-body. Looking for a supercharger for your Chevy Or GM? Shop our selection of universal supercharger kits for Camaro, Corvette, GTO, Pontiac, Firebird, LS1's and more! Gain 50-80% more power using our bolt-on systems. The LO5 came in the 92/93 Buick Roadmasters(91 wagons had the LO3 305), and was basically an engine borrowed from the Trucks. And the LT1 was not emissions certified in the truck, and likely the short runners weren't quite what the trucks want for low end power. I reused the stock locks. 3L Vortec 6. Speartech is your LS & LT wiring harness swap specialist. The theme here is big displacement in a small-block made of aluminum, re-engineered with modern technology and race driven design. Precision machining along with in-house assembly and testing ensures that you receive the highest quality product. It is architecturally similar to the LS family of Small-Block engines, but with a unique block casting, cylinder head design, oiling system and more. Water passages are the same as a standard small block, but intake bolts are different. Starting in 1996, on several GM trucks and vans, the L31 Vortec heads came on the scene. If for any reason you purchase a set of heads from SRH, or have yours ported, and they don't perform like we discuss, send them back and I will work on them until they do, free! Or trade back and put you in a different set! Better than any flow data guarantee! Speier Racing Heads now has in-house wet flow capabilities!. 6 Magnum roller tips rocker arms Air Gap vortec intake Quick Fuel 750 VS carb. 5 LS/LT, Vortec/EcoTec3 Engines Posted by OnAllCylinders Staff on April 5, 2018 at 2:42 pm Introduced in the 2014 C7 Corvette, the all-new LT engine series is the latest iteration of the GM V8. The leading manufacturer of universal supercharger kits for street cars, trucks, SUVs, boats, race cars, and more! Gain 50-80% more power using our bolt-on. 10185040 Aluminum head, 2nd version, 45cc, angle plug, splayed valve, 240cc port volume 10205245 350 93 Gen II 350, LT1, aluminum head, reverse flow cooling, 175/68cc port volume 10207643 350 94-96 Gen II 350, LT1, aluminum head, reverse flow cooling 10225121 350 94-95 Corvette ZR1 LT5, DOHC 32V driver side. stock bottom end is solid and will live up to a little boost and an occasional spray. Read all about the various LT1 Cylinder Heads available to the aftermarket community as we provide an in depth comparison. Get the best deals on Vortec Car & Truck Cylinder Heads & Parts when you shop the largest online selection at eBay. 3L) 94-96 VORTEC engine, 4 intake bolts in each head LT1, vin P, Gen II Cast Iron heads: 10125320, 12554290:. Found a rumor one person has done it but I couldn't get in touch with him. [Archive] Page 46. 8 to 1 ratio. They are raised ports, heart shaped chamber, high flowing. Founder and president Art Whipple has always been regarded as a true innovator and enjoyed a very successful racing career as crew chief and owner of Top Fuel Funny Cars and Dragsters, as well as many other forms of racing such as circle and drag boats. 3L V8 SFI, 4-Speed Automatic with Overdrive, Sandstone Metallic. Recent Arrival! Clean CARFAX. TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. Jet-Hot® partnered with Kooks to create these headers due to a shared reputation for sterling quality, craftsmanship, and. I am not up to speed on GM products or engines, but I do have access to a few short block 5. stock bottom end is solid and will live up to a little boost and an occasional spray. I have some vortec heads in the garage and the original LT1 fuel injected intake if you want me to check. Known as the GEN 1+, this was the final incarnation of the 1955-vintage small block, ending production in 2005. Use the application buttons on the left to find the correct bolt pattern for your heads. If you modify your setup, with aftermarket heads, cam, etc. Visit Haley Toyota of Roanoke in Roanoke VA serving Salem, Lynchburg and Christiansburg #1GCEK190X8Z133915. We are a small family owned and operated company with over 30 years experience in the automotive industry, that strives for 100% customer satisfaction. GM claimed that the original LT1 aluminum head had a 15% increase in airflow as a result of revised port angles and higher port ceilings when compared to the 1991 L98 head. Research the 2009 Chevrolet Silverado 1500 LT in Lubbock, TX at Gene Messer Ford Lubbock. The drop in compression you would see if you used 350 heads is not worth the minimal cfm gain. GM changed the LT1 head design by revising the water jacket so the new Vortec heads could be used on conventionally cooled small-blocks. With a common, four-eyebrow flat top piston and a. They are raised ports, heart shaped chamber, high flowing heads. Below are several variations of our 383 Stroker Engines. And more importantly it was an expensive engine compared to the L05 and soon to come Vortec 350. The cast iron Vortec head was in development six months longer than the aluminum head. Trick Flow 215cc GM LS Cylinder Heads, PN: TEA-LS215TF-CUSTOM. I test ran the engine on an engine stand using Ethanol made from a moonshine still. The world's absolute lowest prices since 1985. The cylinder heads were redesigned in terms of the casting quality of the valve bowls and runners and the ports were moved slighly. These heads were only used on a few models of Vortec truck. The LT1 may make more torque sooner on a dyno graph but I really dont think it is a big enough margin to make a difference compared to an LS1. It is architecturally similar to the LS family of Small-Block engines, but with a unique block casting, cylinder head design, oiling system and more. GM changed the design for the Generation II LT1 small block with aluminum heads and reverse-flow cooling, meaning the heads were cooled before the engine block. DIY Head Porting Small Block Chevy Vortec 062 Part 3 of 3 - Duration: 4 minutes, 39 seconds. As you mentioned, the accessories and the carb are specialized for marine use, but the block and heads are just the standard block and heads. mine has cast number that ends with 880. I have some questions. The new Vortec V8s available this year are versions of the LS1 engine found in Camaros and Corvettes. Edelbrock offers a special Air-Gap Vortec intake for them (PN 7516). Hi guys, searched the forums on this and found a couple of articles but was really looking for some first hand experience on this. Compared to the Vortec head flow data. These heads have the swirel inducing combustion chamber and the re-positioned sparkplug like the LT1 heads. I think the 99 vortec has low compression but good heads. For example, the marine engine uses head gaskets with stainless steel inserts, and brass freeze plugs. However, chances are that the Chevrolet engine obtained for a conversion will not have all of the matched parts with it. Featuring the 2. Compared to the Vortec head flow data. LS vs Vortec Swap vs Basic Upgrades - Cost Factors Blueprint 350 with Vortec heads. GM Vortec heads are arguably the best-flowing Gen I factory, stock-production, cast-iron, head ever offered. The LS3 engine wiring or as many call it, LS3 engine management system requires solid integration with the GM LAN, and all associated computers. Find CHEVROLET 5. 4601cc (280ci) Compression Ratio. Harris Performance, INC. Does anyone have any information comparing the lt1 iron and aluminum heads for performance potential. The 305 vortec heads aren't vortec's at all and the 350 vortecs leave the compression on the low side. They know how to make LTs run very hard. Isaiah molina. I figured no need for plus. Looking for the right Vortec Oil Pan today? Find your next Vortec Oil Pan and other auto parts and accessories for sale on Ebay today. All Pro Heads is the Industry Leader in Small Block Chevy Aluminum Cylinder Heads, (as well as the new Generation 3 and Mopar W9RP) , catering to the hard core racer always looking for the perfect design for a specific application. In essence, the Vortec head uses the iron LT1 chamber intake and exhaust ports in a standard-water-flow iron head. GM 454 Vortec vs. Bryan's list has part numbers, and several part numbers were made from the same casting. Its not an all out grind, but it plenty of power. Clearwater Cylinder Head was recommended from a Jeep thread I was following. LT1 head valves are too big for the L99 boreyou can't use those heads. LT1 vs Vortec 350 harness isn't a big deal really. Browse TFS Cylinder Heads - Chevy LS / LS1 / LS2 / LSX Products Sort Best Match Lowest Price Highest Price List A-Z List Z-A Newest Oldest View 12 24 48 50 60 96. These babies produce some good horsepower numbers. Lot's of hot rod parts for either. Like I said before, the best flowing factory head port was the LT1 iron which is the same as the Vortecs. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. The truck/SUV pumps are extended forward, closer to the radiator VS the car platforms, also the pulley is not as wide as they only use 1 style balancer. I've recently begun shopping for a 1998 5. Both are good motors, and yes, obviously as '02 WS6 would run away from a 94 Camaro Z28 (stock vs. That was impressive in 1992, but the iron LT1 head that came out in 1994 was even better. Look for casting number 12558062, but avoid casting number 10239906, which has a modified exhaust seat and loses 20 percent of its flow at 0. Car supposedly also has a mild cam and ported heads but im beginning to think that the guy I bought the car from lied to me about those (Which I don't mind if he did because I only paid 1600 for the car. 3 (LM7) iron block. This superstar cylinder head dropped off the performance map because both the aluminum and cast-iron heads lacked a coolant crossover passage, rendering them useless to any engine series other than the discontinued LT1. put a wieand action plus intake and stock hei and one of my favorite carbs a 850. Starting in 1996, on several GM trucks and vans, the L31 Vortec heads came on the scene. TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM. It's basically an iron head LT1 with a smaller bore and stroke. Also the LS1 makes 35-40 more horsepower straight from the factory. 7L SWB, and I was curious as to what kind of aftermakret crossovers between the Vortec V8, and say an LT-1/LS-1. I have been told that the heads that come on the Vortec are pretty free flowing, and a good for performance. Aluminum is automatically lighter but not faster. This might sound stupid, but I can't get a straight answer on this. On the streets, Turn Key engines can be found in award winners like the Good Guys Street Machine of the Year, built by Roadster Shop, and countless articles in hot-rod/restomod magazines like Super Chevy, Chevy High Performance and GM High-Tech Performance. GM recommends using a Vortec intake manifold with these heads. 550 the stock head is not. Are the original heads on my '92 CSB 350 engine worth modifying, or are they just junk who should be swapped with Vortec heads or something? By the way, the engine is modified with Air Gap intake, carb, headers, no AC / PS, and 2,5" double exhaust. The main difference are CAM and INTAKE. 1997 in Corvettes and Z28 Camaros, also some Chevy Caprice SS and police cars. Fast Burn heads accept both center-bolt and early flange-mount valve covers and retail for $679 each. 60" exhaust valve. The ease in which you can locate these engines and cylinder heads can often complicate matters, which is why our how to identify your Vortec engine is here.