Lt1 heads The Edelbrock part # 77119 LT1 (Gen V) Performance RPM cylinder heads are ideal for street engines and are engineered to be a great high-performance upgrade for stock GM Gen V LT1 engines. chevrolet performance gen v lt1/lt2/l86/l87 cylinder head - 12699617 . That includes 1993. I know I could possibly ruin the heads but I need to learn somewhere and Im willing to take the chance. Varies Based on Options. LT1 aluminum heads only flow about 12% better than TPI heads, so nothing to write home about there. With huge flow numbers and an efficient port shape, the GPI CNC ported Gen 5 LT1 / LT4 / L86 offering is truly bolt-on performance! Intake Port Volume: 320cc Exhaust Port Volume: 116cc Our LT1 / LT4 / L86 head was developed specifically for the stock displacement Carnut1 wrote:I have never done a set but I have seen them before. Bolt on these CNC ported LT1/L86 heads & gain 25+ HP depending on milling! Because they are designed for reverse cooling they will not work on an early block and most of the LT1 heads were aluminum except for some of the early ones which were iron. 400-. So, from a performance standpoint, LT1 iron heads = vortecs. Jump to Latest 6. rick7343 . With a camshaft change you would require better valve springs. This is the first “Hot Cam” for the Gen V LT1. LT1 Cylinder Head Assembly 12678972 Chevrolet Cylinder Head. New passages would need to be drilled and then you would need to resurface the intake and deck surface to remove any warping. 660" Dual Valve Spring Kit with PAC Springs & Titanium Retainers Installed on Mast Black Label Gen V LT1 292cc/60cc 4. 660" Spring Kit and Titanium Retainers $ 1,999. All new 6-bolt Precision Race Components LT cylinder heads! MADE in the USA!! CAST in the USA!! MACHINED in the USA!! Click Here to SEE why we build better heads! 2. CYLINDER HEADS & ROCKER ARMS. 69 70 Camaro Z28 Corvette LT1 cylinder heads 3927186 Chevy 1969 1970 SBC 302. Starting with a CH-LT1-600198 High performance premium cylinder heads and components for LS & LT applications. They don't perform poorly The heads seem to be good. 165" Stainless Hollow stem Intake Valve / 1. 2L LT1 engine! The TSP heads/cam package will include the following items: Precision Race Components Aftermarket LT1 Cylinder Heads TSP . 17. add to cart . Yes the heads look really good in several ways and the flow numbers don't match the hp levels say flow/hp x/y verses the LS3 flow/hp x/y is quite different. My son, Ryan M. The CNC porting process ensures that each intake and exhaust CID offers Performance Cylinder Heads and Intake Manifolds. Don't underestimate the potential of the LT1 heads, they are a really good design and will support plenty of power with a minimal amount of work. It has been designed with a thicker deck and more material in the intake, exhaust and port walls for improved strength and durability. 7 L) engine based on the Chevy small-block V8 and named as a tribute to the original LT-1. Sponsored. Today we scored another set of LT1 Heads for the Z28. Cylinder Heads GPI – LS1 Heads. 7 LT1 heads are engineered for exceptional performance, providing your vehicle with the power and efficiency it deserves. a day ago. PRC CNC Porting Service - Cathedral Port Find AFR 195cc SBC Eliminator LT Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! AFR 195cc SBC Eliminator LT 23 degree cylinder heads feature100 percent CNC-ported intakes, exhausts, and chambers, as well as A356 aluminum castings and high-quality components throughout. Product Details. Message. Recommended Parts. Free Shipping Stock L86 LT1 cylinder heads - 297 CC intake runner volume / 107 cc exhaust , 56. While the iron heads do flow a little better as stock, you cannot run as high of compression as with the aluminum heads. Your Price: $1,133. Only at GM High-Tech Performance Magazine! Our gen 5 LT1 cylinder heads and camshaft package is a must for the enthusiast looking to use the full potential of their 6. 00 out of 5. LE Intake Portwork Fully porting your LT1/LT4 intake manifold includes opening up TB holes to 58 MM, removing obstructions from behind the TB opening and enlarge runners from plenum area to gasket area. The competition package heads flow more air through the same size ports as the standard 227cc heads. Iron heads don't. $849. 15 watchers. My knee jerk is that the aluminum lt1 must be a better performance head. Applications. 1 product rating - 69 70 Camaro Z28 Corvette LT1 cylinder heads 3927186 Chevy 1969 1970 SBC 302. It did not smoke. Viton, teflon seal for better oil control. Save. 00. Trick Flow GenX® 195 heads are designed for GM LT1 engines with superchargers or turbochargers. 080 std race int valve. newbie321 New Member Posts: 14 Joined: Tue Sep 26, 2006 1:56 am Location: LT1 Heads Compatibility. 1995 Corvette OEM Aluminum LT1 Cylinder Heads, (2) Stuart Florida Pickup ONLY. 5 cc chambers Lingenfelter CNC ported L86 LT1 cylinder heads - 308 CC intake runner volume / 110 cc exhaust . The aluminum heads have screw-in studs. 2L LT1 engine! The TSP heads/cam package will include the following items: Precision Race Components Brawler LS6 Style CNC Ported Cylinder Heads w/ TSP . OEM LT1 LT2 L86 L87 GM Castings CNC Ported. 75" X 4. 00 delivery. 0/1. CNC ported LT1 heads set up for . 5. PRC LS3 Aftermarket 6-Bolt 260cc CNC Cylinder Heads Precision Race Components Aftermarket LT1 CNC Cylinder Heads $ 3,083. Used - Good. Don't try and run a LT1 head on a SBC, waste of time. 060"), Eagle Internally Balanced Forged Crank, Eagle 6" Forged Rods, SRP Forged Pistons, CompCams XFI 467 Cam (230/236 Pair of Aluminum LT1 Chevy 350 5. I plan on doing some port matching and new seals while the heads are on the counter. 5 out of 5 stars. Designed to work with both LT1 and L86 engines, this kit is ideal for 643 cast stock gen 2 Lt1 heads off of a 1994 Z28 643 cast stock gen 2 Lt1 heads off of a 1994 Z28 · Log In. Performer LT1 Cylinder Head Part No. 660 lift cam, sold in Pairs . At our store, we offer a wide range of Chevrolet Cylinder Heads to cater Introducing Katech's revolutionary Gen 5 LT1 CNC Ported Big Valve Cylinder Heads. The intake manifold is proprietary to the LT1, however, a standard small block Chevy intake can be modified to work. 009” 1996 Corvette LT1 Cylinder Heads, GM 10207643, Stuart Florida Pickup ONLY. IMHO, the draw on iron LT1 heads is that they're basically free; if you're learning how to port, and you grind through the side of one, who cares, go get another one. Parts Only. 7L If listed still available Local pickup only. Suggested Retail: $1,229. In-Tech wrote: ↑ Thu Nov 09, 2017 12:42 am There are a few sets of L86's on ebay at times fairly reasonable and will probably pick up a set soon, I am just hoping to find one to cut up first. 55 is the usual setup. #D-250-2 for engines Ported LT1 heads have a 15 angle valve job (radius cut). If you are looking for more power and better Our CID LT1 & CID LT4 ported heads include: CID castings with our in house CNC port Bronze valve guides REV Intake & Exhaust valves TSP 660 spring kit PCD surfaced to your desired chamber size Proprietary competition valve job Hand blended valve job ***This is our most common setup, but if this doesn’t meet you If you do not believe that the LT1 motor is a stock bottom end, stock heads, stock head gaskets that's fine by me. AFR does make an awesome head. Since those are the only afr heads that use a lt1 intake. – $250. Mountain Lion Motorsports Bethel, CT. Rated 4. Listed a day ago. I pulled the motor out of a 72' blazer i had. For a smaller cam on stock heads 110-112 for NA higher for N2O 218-222deg duration . 06. Was the stock LT1 spring you tested against from an f-body or b-body, and did you closely compare diameters? Maybe someone else can confirm or refute the Z28/LT4 spring thing. In stock. Cylinder Heads / GEN V LT1 CNC Cylinder Head Assembly; GEN V LT1 CNC Cylinder Head Assembly 19329839. 0 out of 5 stars Read all about the various LT1 Cylinder Heads available to the aftermarket community as we provide an in depth comparison. Top. All LT1 heads use self-aligning rocker arms. 3 DI) Cylinder Heads Package. 55 exhaust. The ports look very similar to l31 vortec truck heads. 6 rr. Estimated Ship Date: Jun 2, 2025. Most aftermarket heads will have a thicker deck to handle higher boost levels too. 61 cc chambers before surfacing. In 1992, General Motors introduced the LT1, a high-performance 350 cu in (5. 2K views 23 replies 8 participants last post by 99formulam6 Oct 21, 2005. Details. $449. These heads feature a 55cc combustion chamber with a 64cc exhaust port and a 3/4 in. #D-250-2 for engines up to 1994), and are available in the LT1 angle plug version only. Opens in a new window or tab. LT1 Heads - Car Engines & Engine Parts - Brillion, Wisconsin | Facebook Marketplace Our gen 5 LT1 cylinder heads and camshaft package is a must for the enthusiast looking to use the full potential of their 6. All new guides, Comp valve job and surfacing. We can fully port the Trick Flow 23 degree heads and end up with a 210 cc intake port that flows 290 CFM and over 210 CFM on the exhaust. 643 cast stock gen 2 Precision Race Components LT1 CNC 312cc ported cylinder heads. This kit is perfect for those who want maximum output from their LT1 or L86 Re: rocker arm alignment with afr 210cc lt1 heads Post by bill jones » Mon May 16, 2011 8:02 pm -there was some discussion about this same problem a while back---and part of how I deal with the problem by moving the intake trunnions sideways slightly within Upgrade your Chevy’s performance with our premium Chevy 5. The Competition heads include the 8019 valve springs standard and 2. Overview. Sorry if I ask alot of questions, but you never stop learning if you ask questions. Ideal for both street and strip applications, the PRO1 series delivers superior airflow, combustion efficiency, and durability. A prototype set of Edelbrock Performer LT1 heads made about 24 horsepower more than factory-stock LT1 heads and raised the peak power level by 500 rpm. Yeah guys run all sorts of SBC heads on LT1's, RR 23° heads, 18°, 15° and SB2. With the Impala LT1 head gaskets, my 396 LT1 CR is around 11:8. TFS and AFR have aftermarket LT1 castings. Several Lt1 Impala sites state that the iron (vortec design-straight plug) out flow the aluminum lt1 ('92 Corvette, F body, excluding Lt4) by a substantial amount. Chamber size 65cc. LT1 CNC Cylinder Head Assembly • Fully assembled • Machined for direct fuel injection • CNC machine-ported intake and exhaust runners Increase your already-strong LT1 with these CNC ported heads and camshaft designed specifically for direct injection. 060"), Eagle Internally Balanced Forged Crank, Eagle 6" Forged Rods, SRP Forged Pistons, CompCams XFI 467 Cam (230/236 @ . Had them milled to 55CC Believe the 1031 P/N is for the Eliminator Street heads. Spring pressure checked and installed to correct height. Post by crazycuda » Wed Oct 12, 2005 7:17 am. Long and short side reworked, roof raised and guide thinned. 7L/350 Edelbrock Performer LT1 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! These Edelbrock Performer LT1 cylinder heads are designed for the 1992-97 LT1 engines. Complete Cylinder Heads. redneck43 (24,350) 99. I'm just curious why someone would go to the extent of welding cast iron and aluminum for a modification that would be identical (performance-wise) to bolting on Vortecs. Do they install new seats or will the originals take that size. Its that kind of info that Im looking for. Trick Flow GenX® 195 heads for GM LT1 engines are designed for forced induction engines. 00 intake and 1. Free local pickup. Thought it was better to just do something designed for high power to begin with. Manufactured in Ohio USA the CID GEN V LT1 & LT4 6 Bolt Cylinder Heads were the world’s first aftermarket GEN V LT Cylinder heads. Gasket match and pocket port. Great cylinder-head airflow has been a key enabler of the LS-Series‘ exceptional performance. All new 6-bolt Precision Race Components LT cylinder heads! MADE in the USA!! CAST in the USA!! MACHINED in the USA!! Now available For LT1 or LT4 Builds! Cyl Heads, AFR Eliminator LT1, 195/64cc, Angle Plug. Buy It Now. And hopefully specifically the LT1 heads. 50 out of 5. AFR 180cc LT1 Eliminator Street Heads. O. Rated 5. 503 Lift 112 Lobe center should give everything the heads are capable of with good driveability and mileage. From what I can find 2. What I'm saying is, you can get better performance with a bolt-on Vortec head than you can from the thousands you'd spend on modifying aluminum LT1s. Precision-engineered for durability and performance. The rest use lt4 intakes. I got to thinking I believe "Z28" springs are the same as "LT4" springs. Precision Race Components Aftermarket LT4 CNC Cylinder Heads $ 3,656. Or more so the motor build would determine if the 21 or 23 degree trickflows should be used. in Columbus, OH. 600" Stainless Exhaust Valve; ALL LT1 f-bodies came with aluminum heads. Our gen 5 LT1 cylinder heads and camshaft package is a must for the enthusiast looking to use the full potential of their 6. Toggle navigation. LT1 heads and 2. Late Model Engines pulls a new 6-bolt bare casting straight from Edelbrock’s foundry right here in the USA. Short money for more material and lighter heads if you're going to port them. NOTE: Installation of this kit will affect engine variable valve timing and Active Fuel Management operation. They will fit ALUMINUM LT1 heads, but NOT iron we got a smaller spring pocket. AFR 180cc LT1 Eliminator Street heads are emissions-legal (CARB E. These castings also allow for the [] Finished the LT1 heads!182/72 ports, 55cc chambers, stainless 1. Stock LT1 heads flow enough air to make 415HP or more. The FULL ENGINE AND CAR SETUP IS KNOWN AND LISTED HERE. Heck I have Agostino ported GM LT1 aluminum heads on my 350 and many would say ARE heads are junk. Anyone ever put a set of 2. Though the cam and compression of the motor. Heads checked for cracks and warpage. LT1 heads (gen 2) $150. They produce approximately 24 hp more than factory-stock LT1 heads, and raise peak power levels by 500 rpm. I decided on AI for along the reasons that BrutlTA did. It was really cold natured. PRC Aftermarket LT1 Heads and Cam Package - PRR-199-PRCLT1HCPkg Precision Race Components LT1 CNC 312cc ported cylinder heads. A local NHRA B/SA LT1 stock eliminator car was running 10. Dart’s PRO1 Small Block Chevy Cylinder Heads are expertly designed to boost performance in Chevrolet small block V8 engines. Many hours of R&D have gone into the development of our incredible Gen 5 LT CNC program. 99. They retain the stock LT1’s 23° valve angles and feature large, standard cast combustion chambers to reduce compression and big, Fast As Cast® runners to substantially increase horsepower and torque in boosted applications. Instructions & LT1 Heads Compatibility. What I'm saying is no way would I try to convert sbc Gen I heads to Gen II block as LT1 heads are great heads for a stock Chevy head - and dirt cheap. Chambers reshaped and valves unshrouded to enhance swirl and exhaust scavaging. Had no problems matching up to my ported stock LT1 intake. LE TrickflowThese Trick Flow 23 degree LT1 heads feature larger chambers and are great for forced induction and stroker build ups. If you want to run the LT1 heads just run the LT1 block as well. 50” valves. Does anyone have any information comparing the lt1 iron and aluminum heads for performance potential. I used LT1 head gaskets, a non-LT1 intake and LT1 intake gaskets. Part Number: EDL-61905. Reviews. 1996 Vette, 388 CID LT1 (3. i have plans for afr heads, comp cam, good intake, after i graduate as a mechanic but i want to kno what would be the best mods to go fast quick and reasonably cheap for now. LT1/LT4 heads employ rail-style self-aligning rocker arms similar to the LS. For 1992-97 LT1 Small-Block Chevy 61909 GPI / CID – Track Attack LT1 / LT4 Cylinder Heads Package. The ports and chambers in the iron LT1 heads are what became the Vortec heads in '96, just without the reverse flow cooling. They retain the stock LT1's 23 degree valve angles and feature large, standard cast 62cc combustion chambers to reduce compression and big 195cc intake/75cc exhaust Fast As Cast® runners to substantially increase horsepower and torque in boosted applications. They work with stock or aftermarket self I was thinking complete exhaust system, i dont have to pass emmisions so long tubes with straight pipes into flowmasters, and maybe a 100 or 125 dry shot of nos. They are emissions-legal (CARB E. Showing steps and progress examples to give a visual representation of what to expect as the porting is Yes, the B-body used a thinner head gasket and 64cc chambers. I didnt want to spend $500 for new vortech heads when LT1 heads are pretty much the same thing. 500 lift. 4116 posts · Joined 2005 Add to quote; Only show this user #1 · Oct 19, 2005. Replacement Parts. 2L LT1 engine! The TSP heads/cam package will include the LSXceleration CNC Ported LT1 LT2 L86 L87 OEM Cylinder Heads. Not compatible with self-aligning rocker arms. I see several companies that use 2. It was offered as a base engine on the C4 Corvette and a variety of other GM vehicles in GM produced a number of LT1 cylinder heads during the 1990s. Rocker Arms & Trunnion Kits. 7L LT1 # 10207643 Rebuilt / Remanufactured cylinder head. The iron LT1 heads are overlooked as I see them in the boneyard all the time. L83. Part Number: TFS-30410010. Trunnion Components. Gen V LT1 & LT4 CNC Ported Cylinder Heads are a complete new redesign from the ground up. Iron LT1 heads flowed better than the aluminums anyway, and the port in the LT1 was copied down to the millimeter for 96-99 Vortec heads (castings 062 and 906). 000 rockers are hitting stud, but marking on valve looks pretty good, so i just ordered shoulderless studs, anyone use them? I got a adjustable pushrod but something don`t seem right, These 5. Be the First to Review. Guys I want to build one mean ass LT1 or LT4, that Texas Speed 580-600 HP Heads and Cam Package for 2016+ Camaro, 2014+ Corvette, & 2014+ GM Truck (LT1/L86) Unlock the true performance of your 2016+ Camaro, 2014+ Corvette, or 2014+ GM Truck with this Heads and Cam Power Package, engineered to deliver an impressive 580-600 horsepower. Thanks We offer 3 different levels or port work for LT1 heads. The reason I did it was that I dropped a 350 in my Fearo about a year ago and the original heads cracked. Vehicle Packages. There are no coolant crossovers on the intake, coolant is routed through the back of the cylinder heads through a crossover tube. 0 out of 5 stars. Sell your Gen I heads. If that was a 383 I would be ashamed of it. Buy It Now +$120. 1. Start to finish porting a set of LT1 cylinder heads. Estimated Ship Date: Tomorrow. 000, to short for lt1? Heads were milled, ls7 lifters, hotcam, 1. Pushrod length 7. Share. These Edelbrock Performer LT1 Cylinder Heads 61905. So you are talking more money. Yes I did call BS on 380rwhp because I don't think that the details of that setup warrant those numbers ligitimately. will ship directly from manufacturer estimated ship date: tbd. $1,299. 92. Symmetrical Port Big Block Chevy Heads & matching Manifolds, LS7 & LS3 manifolds, GenV LT1 Cylinder Heads, LS7 Cylinder Heads & SB Ford SC1 and SC2 Cylinder Heads Hit our local junkyard to get some parts. No shipping. 94”/1. Post by newbie321 » Tue Jul 03, 2007 2:37 am. With the CID 6, BOLT GEN V LT heads we set out to address all the underlying problems associated with factory cylinder heads when trying to increase horsepower levels. CHEVROLET PERFORMANCE LT1 CNC PORTED CYLINDER HEAD - SOLD INDIVIDUALLY - 19329839. C5 Corvette & Z06; C6 Corvette; C7 Corvette; C8 Corvette; Gen 5 Camaro; Gen 6 Camaro; Cadillac; G8 GT & GXP; Pontiac GTO; Browse By Categories Description: AFR's LT1/LT4 heads are designed for the Gen II reverse cooled SBC engine from 1992-1996. They feature all the same benefits and quality components as AFR's Gen I SBC Heads in addition to dual pattern valve cover mounting holes and Chrome Moly Retainers as standard equipment. 02 valves. 60 valves in the alum lt1 heads. $4,885. You might gain that much on a Big Chief BB Chevy head with 2. 3%. Shop now for quality replacement parts. Performer LT1 heads work with stock or aftermarket self-guiding roller rocker arms. Select options. 02/1. Find CHEVROLET 5. 35 intake valve and 55 degree valve job but not any of the heads that they are testing here. Enthusiast Discussion starter. It just doesn't happen. $1,200. LT1 heads on a 1st gen 350. AFR's LT1/LT4 heads are designed for the Gen II reverse cooled SBC engine from 1992-1996. Rating: 0 % of 100. 7L LT1, Each. 20 hrs of labor, Trick Flow® GenX® 195 Cylinder Heads for GM LT1 TFS-30410010 TFS-30410010. Available to purchase out right or with Bare Cylinder Heads With Valves. Looked like water passages needed to be welded. $249. :thumbsup: So I can see the trickflows being a better head. Enjoy! New Videos every Thursday! If you're interested in de Pat Gish with his unported iron heads makes all of our ported stock LT1 iron and aluminum heads look poor but that doesn't mean our heads are poor. Edelbrock Performer LT1 Cylinder Heads 61905 Cylinder Head, Performer LT1, Aluminum, Assembled, 54cc Chamber, 170cc Intake Runner, Chevy, 5. 050), Other than that, I am not sure since you are NOT gonna gain 73 CFM on an LT1 head from . Only 4 left . Although it took me FOREVER to sell a set of aluminum LT1 heads for $125 a couple of years ago. Whether you're upgrading your engine or seeking a reliable replacement, these SBC 290 heads are an excellent choice. That's why the iron heads are regarded as the better flowing between the two (iron and aluminum). Qty. 2° heads are all common. Chevrolet Performance delivers those power-building attributes to you with a range of production-style aluminum heads? from the LS6 heads for smaller-displacement engines to LS7 style heads for 427-inch-and brodix cylinder heads - ls7 - sts br7 - 273cc - cnc ported - 72cc chamber - 6 bolt - assembled - 1178101 . Cameron, graduated from West Point on 22 May 2010! He was commissioned as a 2nd Lieutenant and I pinned on his first pair of "Butter Bars" PROUDEST DAY OF MY LIFE!! 1996 Vette, 388 CID LT1 (3. We design and manufacture a large line of cylinder heads for LS1, LS3, LS7, LS9, LT1, LT2 & LT4 engine platforms. Included in this package are: - Chevrolet Performance CNC ported LT1 cylinder heads (in need of milling for best results) - MSD Atomic intake manifold - BTR Gen V 225 camshaft - BTR conical OR dual valve Texas Speed 590-610 HP Heads and Cam Package for 2016+ Camaro, 2014+ Corvette, & 2014+ GM Truck (LT1/L86) Unlock the ultimate performance of your 2016+ Camaro, 2014+ Corvette, or 2014+ GM Truck with this Heads and Cam Power Package, designed to deliver a powerful 590-610 horsepower. Cylinder Heads GPI – Ported OEM L83 (Gen V 5. to make them work with the standard cooling system of the 1st gen After approx. Also ordered the AFR SBC LT4 Intake gasket P/N 6860. General engine tech -- Drag Racing to Circle Track. We’ve seen ported LT1 heads leak coolant after porting, believe it was PRC/Texas Speed ones that were the most common offenders. Bare Cylinder Heads. Chevrolet Performance delivers those power-building attributes to you with a range of production-style aluminum heads ヨ from the LS6 heads for smaller-displacement engines to LS7 style heads for 427-inch-and-larger The LME LT1/LT1 Racing Heads bring you the highest flowing Gen V LT cylinder head on the market. Chasing incre GM Fastburn heads are basically LT4 heads for a SBC. I'm selling a set of LT1 heads from a 1994 trans am these heads are straight from machine shop never used but have been sitting in my garage 10years asking $250 located in Chester Pa 19013 LT1 Heads - Car Engines & Engine Parts - Chester, Pennsylvania | Facebook Marketplace LT1 Heads. 40s today at noproblemraceway. Q&A. Composed of A356 aluminum castings and premium grade It took some "engin"uity but I was able to bolt iron LT1 heads on a '90 L98 block. This 650+HP power package from BTR gives you everything you need to get over 650 reliable crankshaft horsepower from your Gen V LT1 engine. From: $ 1,095. LS1 / LS2. Ran strong enough to snatch second with 33's on it. Precision Race Components is proud to introduce our CNC ported 6. Here’s how they stack up. That more than makes up for the difference in flow. At 7. LT1 CNC Cylinder Head Assembly 19329839 Chevrolet Cylinder Head. Air Flow Research Eliminator "Street" heads are a cost effective performance choice over re-worked factory heads. Yes to driveability and mileage, no to all they are capable of. Ive got pocket ported GMLT4 heads with no runner porting and I love em. Be careful when shopping for these heads—there were eight different aluminum cylinder head castings produced for the LT1/LT4. Moderator: Team. Cylinder Head, Performer LT1, Aluminum, Assembled, 54cc Chamber, 170cc Intake Runner, Chevy, 5. Valves. 2L LT1 & L86 cylinder heads! The PRC ported gen 5 LT1/L86 cylinder heads are an excellent upgrade for customers looking for more power than what the factory castings offer. The heads should cost pocket change and should be much cheaper to buy them then to rebuild them. Every aspect of our cylinder heads is a testament to precision engineering. He went to alot of effort, plugging the coolant ports on the ends, grinding the coolant passagess in the deck of the heads to match the head, etc. AI is going to be working my TFS heads for the blower motor over for me, and among my reasons for going with AI was the fact that he was in VERY early on the TFS LT1 heads and did a lot of R&D with TFS finding thin spots on the walls and such. The motor (the one I'm using now) ran great in the blazer with the Lt1 heads on it. I ran on side a LT1 383 powered 2800lb corvette in the 3rd round, Hey, just a quick question about the Lloyd elliott heads/cam. Depending the the goals of your project we will have a head that fits your needs. SStrokerAce Guru Combustion chamber volume is 54cc. Search By Vehicle; Products. Small Intake Port design by Greg Good is 10% smaller than a ported factory head and makes for an outstanding power increase over factory heads. thick head deck LT1 LE3 Heads 380 – 420+ rwhp; More information on cams can be found here. 3 posts • Page 1 of 1. Condition. 065 CNC Cylinder Head - Port Injection - Bare CH-LT1-600198 Mast Motorsports offers the most comprehensive LS & LT Line of Cylinder Heads. You can also run more ignition advance because of this. More material where needed and accept all factory parts except head bolts. ncssrsbrwnzgwphnvdsmyekqxouajbqolwwmipgyyldyrbzfyxjsjyknypndebrsizrgtpkypdoaus