Lq4 Heads

The heads got ported and polished, and they're now rectangular-ported LS3 pieces. 0 bottom end stock 243 heads with PAC. Navigate: StoreFront / Cylinder Head Parts & Services / Cylinder Head Services / CNC Port LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR). These heads were reworked, they also come with a new set of valves and high rev springs. Alloy heads in particular can distort and then leak. Cylinder Heads: Aluminum: 356-T6 Semi-permanent mod (SPM) and sand cast moldings Cast Iron: Some 1999 and 2000 LR4 and LQ4 engines: Crankshaft: Cast nodular iron, internally balanced, rolled fillet journals. Re: Cam only lq4 dyno results Not a lot of compression in the pig (static or dynamic), 80e eats up some power and the truck intake would be where I look. I've been thinking about and planning for the LS1 swap in my car for a while. In cases where you have a decent port job on a set of iron heads it is possible to bolt on a set of out-of-the box aluminum heads and lose power. About the The Vortec 6000 LQ4. 550 hp all aluminum 5. 3L - $100 (Randleman) hide this posting unhide < image 1 of 2 > 4204 Holly Grove Ct. Once you’ve found the cylinder heads that are right for you, shipping in the lower 48 is fast. 0L truck motor, but it was upgraded to 408ci status thanks to a Scat rotating assembly. First item up was to purchase some LS3 Heads. Great for a swap project. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small block V8 that preceded it as the basis for GM small-block V8s. 97 L (364 cu in) from a 4. There are bigger cams but they get really temperamental on the street and are made for pure drag racing. All heads come with high quality components, such as titanium retainers and Pac Racing Springs. Bolting a set of LS6 heads to the iron block, the LQ4 was born. 900” to accommodate intake valve clearance. My new youtube channel can be found here : https://www. The LQ9 had flat top pistons with 4 valve reliefs for higher CR. And 500hp out of a mild cam, stock L92s aint gonna happen with an Lq4. 030 puts your chamber at ~ 62. The beefy iron block and the 4. All other features are the same as previous years iron heads. They offer a large combustion chamber that lowers compression ratio making them perfect for a forced induction application. Cylinder Head Height/Thickness - Measured from the Cylinder Head Deck to the Valve Rocker Arm Cover Seal Surface ; 120. This is the workhorse head for street / strip turbo and blower cars. Both can handle 1000hp stock but it depends on how bad you want to drive over your rods at 130mph. Add 100+ horsepower to your GM LS or Gen 5 LT engine with a Texas Speed & Performance cylinder heads and camshaft package! Our packages will include cathedral port, square port, and rectangular port cylinder heads to accommodate LS1, LS2, LS3, L99, LS6, LS7, LSA, LQ4, LQ9, L83, L86, LT1, and more!. Displacement is 5. The LQ4 is a low compression motor from the start, combining that with the LS3 heads will probably make it a dog. Recommended torque is equal to 75% of the fastener's yield strength. 00 stroke, while others are 3. 0-liter truck engine. 97 L (364 cu in) from a 4. a 72 cc vs 64. 0 engine lq9 for 02-07 model escalade & silverado ss. lq9 all have gen 4 rods which are ~850hp safe lq4 can have gen 3 which are ~650hp safe, or the gen4 if its 03/04ish or up. Two identical engines, one with a set of cast iron heads and one with aluminum heads with everything else totally identical will make 2 different amounts of power because the aluminum throws heat MUCH faster than cast iron which means detonation doesn’t happen as fast, so you can run more timing and even more static compression which will net. The LQ4 served in anything from bread-vans and boats to SUV’s between 1999 and ’07. You can also do the reverse, say you want to mille a head. basically they took a bone stock lq4 installed a set of the new L92 heads from the new 6. They’re easy to recognize because they have the same “Dee” shaped exhaust ports that were found on the LS6 heads. 0 mm) stroke. Bottom end is completely stock. Minimum bore sizing is 3. Cargo Van and Mid Truck Engines: Isuzu 4HEI and 4BD2TC, International T444 and DT466E, Mitsubishi 4M50-1AT2, GMC LQ4. 0L LS Stroker Build With Crane Cams Our test engine started out life as an LQ4 6. Our fellow tech writer and dyno flogger Richard Holdener reports roughly a 15 hp gain with stock 5. Is as*ed out. LS Atomic on Edelbrock Victor Jr. 0 together or will I have to purchase a new harness. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. Figure 500 ponies with that. Topping off the engine will be a set of Trick Flow GenX® 220 aluminum cylinder heads , about the perfect pairing of a short block and heads as there ever was. Time to get rid of the stock heads Upgrade and get more power! The LQ4 heads are found on the low-performance version of the 6. Add 100+ horsepower to your GM LS or Gen 5 LT engine with a Texas Speed & Performance cylinder heads and camshaft package! Our packages will include cathedral port, square port, and rectangular port cylinder heads to accommodate LS1, LS2, LS3, L99, LS6, LS7, LSA, LQ4, LQ9, L83, L86, LT1, and more!. I was wondering if you guys could take a look at my tune and make sure I'm not drastically screwing anything up. Each of the three also come with different heads. Cast-iron Vortec cylinder head assembly for small-block engines from Chevrolet Performance. i like the tunability of EFI. At some point during the 02/03 model year they made the transition to the LQ9 motor,,,but the aluminum head from the previous year LQ4 stayed the same. The coolant spills into the bottom end of the engine. Pace Pac LQ4 to L92 Budget Build Package. Easy to use parts catalog. All heads come with high quality components, such as titanium retainers and Pac Racing Springs. I have a lq4 6. My new youtube channel can be found here : https://www. The 1999 and 2000 model year engines had cast iron heads with all other model years sporting the cast aluminum heads. Your LQ4 should have the 317 heads, which are a great factory head. HardBlok Water Jacket Filler helps increase horsepower for high performance racing engines, prevents cylinder walls from cracking and dampens unwanted vibrations. 0 LQ9 was used in GM trucks and SUV applications from 2001-2005. Selling my 6. Your Source for LSX Conversion Parts. 610 w\ full cam kit, Edelbrock Vic Jr manifold with custom elbow, 48lb injectors, Custom CAI with raim air scoop,Kooks 1 7/8 longtubes catless with custom H-pipe and 18inch, sweet thunder muffs in 04 location. 0 CYLINDER HEADS LQ4 LS1 LS2 LS3 4. See what makes SD Parts stand apart from the competition today! SDParts. and after all my purchases last night at the machine shop and the computer MAP reprogramer i might have 900 bucks left over! i have a feeling thats going to be for tires. Edelbrock is the most respected name in performance. This is assuming no machining has been done to either block deck or the head. AUTOMOTIVE,LS2 / LS3 / LS6 / L92: Flat Top Professional Series - JE Pistons LS2 / LS3 / LS6 / L92: Flat Top Professional Series Compatible with GM L92 Cylinder Heads. The motor has 243 heads with Brian Tooley Racing dual valve springs and valves. 0 Liter truck engine was designed to bridge the gap between the new LS small blocks and Big Blocks for the truck applications. Best Answer: If it is an LQ4 then you have a fairly low compression ratio compared to LS2's and LS1's. do NOT contact me with unsolicited services or offers. You can also do the reverse, say you want to mille a head. Almost everything has an RPO code. 0 iron block engine and I can run over 30* with no knock. 0-inch bore and 3. Vortec is a trademarked name for a line of small block engines for General Motors trucks. The heads are the 317 for both motors. It seems everyone has been writing articles concerning upgrading a used/salvaged 1998-08 LQ4 6. Motorheads Performance of Leesville, Texas shares news and information we hear about each day in our classic car shop. Chevrolet Used Engines Market. Find great deals on eBay for lq4 heads and 317 heads. 3 Liter Vortec engine by General Motors is based on the small block V8 platform. 0l & the new compression ratio with each head installed. 10s but had no trouble with the 3. Component upgrades and different machining options are available to customize your AFR heads for your specific build. CNC Porting Service. The largest offroad forum in the Midwest > 4x4 Talk > Chevy Tech: LS enthusiasts unite!. 8 12pt Intake Manifold Bolt Kit. Is this a bolt on swap or is there more work involved than that? Being told a few different things from a few different people and I just want to get shit straight. I'm trying to keep it simple, 6. The heads were sent out to a local shop where they had 3 valves replaced and were milled and worked over at a cost of $120. Two identical engines, one with a set of cast iron heads and one with aluminum heads with everything else totally identical will make 2 different amounts of power because the aluminum throws heat MUCH faster than cast iron which means detonation doesn’t happen as fast, so you can run more timing and even more static compression which will net. 00” stroke crank Kit includes moly race rings, rod and main bearings, new GM crank angle sensor fitted and indexed with whole assembly internally balanced. Shop with confidence. Case in point, Pace Performance's conversion package to swap the factory LQ4 top end with the better breathing, L92 cylinder heads and high-lift camshaft. The remaining pieces were an LS2 throttle body ($140) and a car oil pan ($105). 10-inch bores should be used and 4. 0L Vortec engine specs including horsepower, torque, bore, stroke and oil capacity. The block is unlikely to distort except after severe overheating, but check anyway using a steel ruler or similar high-quality straight-edge. Big Power for Your Truck or SUV. This Pace Pac package is a very affordable way for you to upgrade to the next generation of GMs performance powertrain offering. Comes complete intake to pan, wiring harness, Ecu, front drive accessories, new water pump, gaskets, oil pan gasket, ready to drop into your project. 0 Head Gasket For LS Series Engines: Head - Amazon. LS2 or LS9 camshaft for lq4 budget build? An actual LS2 makes 400 flywheel with better heads than the 317s. 0L chevy according to car craft. Lq9 ran the 317 heads while earlier lq4s were iron and some were alluminum heads. Displacement. okay so im swapping an lq4 6. September 28, 2015 The late model LS engine family has been around now for almost 19 years and has replaced the old first gen small block and big block as the engine of choice when doing a engine swap. 20 intakes, come with TI valves, flow 37x, and are very, very expensive. Your LQ4 should have the 317 heads, which are a great factory head. 622-inch (92. Completely different intake is used on L92/LS3 heads. Heads came off a good running motor and need nothing besides a good cleaning. 0 truck motor from 2001 to 2002/03 had aluminum heads. 0 CYLINDER HEADS LQ4 LS1 LS2 LS3 4. 42 gears i feel im lacking some low end power, plus my oil pump o-ring is leaking, and you have to pull the motor out to repair that, so i figured what the hell, id swap in a LQ4, i purchased a 02 2500HD at a salvage auction and parted out everything but the motor, so far ive made my entire $2200 investment back, plus an extra $300, i still. 0 dissembled and ready to put together. The engine had 366 cubic-inch displacement, 4. Edelbrock is the most respected name in performance. 5 will include aftermarket 2. 0 liter GM truck engine with GMPP L92 cylinder heads and a GMPP Hot Cam Kit. They offer a large combustion chamber that lowers compression ratio making them perfect for a forced induction application. 0 Engine Lq4 Express Silverado 1500 2500 3500 Suburban Deluxe Reman. LS enthusiasts unite! Chevy Tech. 0 bottom end stock 243 heads with PAC. 0L is about the same cost as a low mileage LQ4 or LQ9 + heads. But, I think I'll go with a LQ4 instead (due to the L92 heads/intake and a few more cubes). The LQ4 head received aluminum heads starting in models year 2001. This does not affect our ability to Mill cylinder heads to desired combustion chamber size OR the option to have your cylinder heads assembled in house prior to shipment. I'd really just get a lq4 and do a cam/valve spring swap. 2003 LQ4/LQ9 6. 5:1 compression. PN: TEA-GML922-CUSTOM. LQ9 LQ4 L92 TRUCK engines with corvette coil covers and intake -Heads - Mast Black Label 285 -Intake - -Callies. Need it delivered outside the US? We ship to over 800 locations around the world!. Minimum bore sizing is 3. 0 inch bore and lower 10. 0 together or will I have to purchase a new harness. 0 into my 88 monte ss and this is my plan for the motor: stock LQ4 6. 0 iron block 317 heads fresh valve job block needs hone minus crank cam and intake $400 obo if interested show contact info thanks. 00 stroke, while others are 3. At some point during the 02/03 model year they made the transition to the LQ9 motor,,,but the aluminum head from the previous year LQ4 stayed the same. 02 and up LQ4 has aluminum 317 heads, normal crank (will fit more than just the 4l80e), and slightly larger cam. LS6 Steam Vent Crossover Pipe and Plugs - 12602544, 12602540 [Part # 12602544-KIT] In stock. 622-inch stroke. Vortec is a trademarked name for a line of small block engines for General Motors trucks. tried to post the link last month but wasnt working so ill just relay what i can from the second article. (This raised the compression ratio, horsepower, and torque. I am pretty set on an ly6 or lq4 but not ruling out the lq9 the main problem I am having is the ly6 has vvt which I dont want and the lq4 dosent have the l92 heads which would be a cheaper, remove vvt or buy l92 heads. All other features are the same as previous years iron heads. Tick Performance proudly offers our Elite Series of Camshafts designed specifically for 4. You could meet your HP goals with a bone stock LQ4 and a TQv2 no problem and still drive great. This does not affect our ability to Mill cylinder heads to desired combustion chamber size OR the option to have your cylinder heads assembled in house prior to shipment. I have a lq4 6. Low pricing and fast free shipping on orders over $100. 6 mm) bore and 3. Double Overhead Camshafts, Chain Drive to Exhaust Cams, Secondary Chains from Exhaust to Intake Cams, Roller Finger followers with Hydraulic Lash Adjustment, Beehive Valve Springs. 0 mm) stroke. OK this is a GM LS1 type engine (gen III) LQ4 LQ9. The LS7 heads use 2. and a variety of vans. See our Intake manifolds - 350 320 318 Chevy. 02 and up LQ4 has aluminum 317 heads, normal crank (will fit more than just the 4l80e), and slightly larger cam. com/watch?v=RL2ueLRxcBc Here is my 73 camaro on the dyno. The ONLY difference between an LQ4 and LQ9 is the piston! There are NO embossed or etched exterior markings on the block or heads to indicate one over the other. Hello, I'm in the begining stages of a ls swap on my newly acquired swb. You probably have other tables pulling the timing. Deck thickness for 317 LS heads (LQ9/LQ4)??? Tech Related Discussion. 4601cc (280ci) Compression Ratio. The engine had 366 cubic-inch displacement, 4. Work performed: Cleaned Pressure tested for cracks Full valve job NEW valve seals. 0 inch bore and lower 10. Given the limitations of the LQ4, we decided that any upgrades to the 6. Intakes Intakes Heads Engine Part # Manifold Port Type 12559855 LS1 12564824 LS6/LS2 12562319 LQ9 88958665 CNC LS6 88958622 CNC LS6 12562713 L76/L92 12615879 LS3 88958698 CNC L92 LS1/LS6 88894339EFI Cathedral Yes No LS2/LQ4 889586754-bbl CathedralYes Yes Yes Yes Yes No No No LQ4/LQ9 N/A EFI CathedralYes Yes Yes Yes. long block engine with heads installed; engine comes equipped with valve covers, timing cover & oil pan installed. LQ4 can be found in any 2500,3500 and 1500HD. if I go efi, here is the question: i'm looking at ls3 intake with l92 heads. Scoggin Dickey Parts Center - Cylinder Heads. Racing pistons, performance pistons, piston rings, custom piston, Diamond Racing provides high performance racing engine pistons and products for all your performance racing needs. 1 (340 HP) - $1800-$2500 for a Drop Out Package. Each of the three also come with different heads. 0 truck motor from 2001 to 2002/03 had aluminum heads. A variety of OE Gen 3 heads are available, including an iron small port (initially used on the 4. This is because the LQ heads were derived directly from the LS6 heads. 6 mm) bore and 3. Any comments are welcome. 243 casting comes with springs and valves $320 These will fit on a 5. I have a bunch of ls parts for 6. Coupling this Hi-Ram intake with the high flowing LS3/L92 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Also, the comment that the L92 heads will fit is a good one. 0 liter GM truck engine with GMPP L92 cylinder heads and a GMPP Hot Cam Kit. Find great deals on eBay for lq4 heads. 0 block if late enough will have the l92 heads (ls6 heads) already and if not they are cheap as hell on ebay new (around $400). Displacement is 5. Gearhead Engines offers remanufactured cylinder heads to fit almost any engine, including Chevy cylinder heads and Ford cylinder heads. 5 heads would work really well. I decided to put them in the shifter delete plate I made a while back. LS Atomic on Edelbrock Victor Jr. We figured out you would only need 30 lb/hr injectors though. LQ9 added 10. This often gives the appearance of a rear main seal leak, as both drip in the same spot. 0 lq4 chevy LS cam input needed. Our stage 1 porting service will include the re-use of the stock vales. This got me thinking that I should be able to pull right at 40hp less than Jims project with the stock heads. ask what the lift is on a kit called the hot cam. It started off life like any normal truck engine. These heads were reworked, they also come with a new set of valves and high rev springs. They flow very well and will easily get 400 hp with a stock cam in an LQ4. This includes remanufactured stock replacement automotive and marine engines as well as "Street Performance Pump Gas" Crate engines. Both motors stock springs and cams are weak. This stands to reason as airflow is a critical element in power production and cylinder heads are one of the key components that determine the airflow into and out of a motor. 3L heads on a 6. All other features are the same as previous years iron heads. Displacement is 5. Automotive, Truck, Marine, Foreign & Domestic Cylinder Heads We are one of the largest cylinder head remanufacturing plants in the U. The L92 heads have proven themselves to be rockets based on the racing influenced design of the heads which have raised runner floor and wider port opening by virtue of an offset intake pushrod. What will the motor be used for though? The cathedral port heads will pretty easily support 500hp, so the extra cost of going to the rectangle port heads (which also means a new intake manifold, which ain't cheap) may not really pay off if the cathedral port heads can support the power he wants to make. Displacement. The LS6 and the later LQ9-LQ4 heads used reshaped intake ports and D-shaped -- as opposed to oval-shaped -- exhaust ports for better flow: 200 cfm intake and 70 cfm exhaust for the 241's, and 210 intake and 75 cfm for the 243's. HIGH PERFORMANCE GM LS EDITION The General Motors LS series of engines debuted in 1997 with the C5 Corvette as the all aluminum LS1 V8. has teamed up with K1 Technologies to give you a one stop shop for an entire engine rebuild. so like title says i picked up a set of l92 ls3(823casting) heads for pretty cheap and was wondering what route to go. Bottom end is completely stock. The LS2 has and all aluminum block where the LQ4/9 is iron. LQ9 LQ4 L92 TRUCK engines with corvette coil covers and intake -Heads - Mast Black Label 285 -Intake - -Callies. What really happened is that the mechanic burped the heads and timing cover off without draining the coolant from the engine first. Same as head on corvettes just a bigger combustion chamber. 3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air/fuel atomization. This is assuming no machining has been done to either block deck or the head. There is a paper sticker applied to the back of the drivers-side head at time of manufacture that indicates the type of engi. Truck Engines: Caterpillar 3126, Mack Renalt MIDR, Volvo F7 T960B and TD61, Cummins Triple Nickle, M11. 3L heads, ive been doing some reading but still need some help, wheater or not i will benefit from the switch. Based on the LS engine, this 6. i like the tunability of EFI. So far i know they will raise my compression, from some reading it will be good low end tq but not quiet up top. Scoggin Dickey Parts Center - Cylinder Heads. The LQ4 is a low compression motor from the start, combining that with the LS3 heads will probably make it a dog. We stay up to date by adding new materials and new applications on a regular basis. ) LS* heads: (do you have the L92 heads on your LQ4?) GM did a great job on these heads, true. destination is a 64 impala ss. The engine had 366 cubic-inch displacement, 4. Automotive, Truck, Marine, Foreign & Domestic Cylinder Heads We are one of the largest cylinder head remanufacturing plants in the U. and are these engines safe to be revved to 7500 ? P. Includes Harland Sharp roller rockers CSP-SLS18 (1. 052 head gasket thickness which calculates out to 10. 3 with 317 is 8. They’re easy to recognize because they have the same “Dee” shaped exhaust ports that were found on the LS6 heads. ”We first started doing CNC porting on cylinder heads in 1993, starting with Top Fuel HEMI heads,” said McInnis. Add 100+ horsepower to your GM LS or Gen 5 LT engine with a Texas Speed & Performance cylinder heads and camshaft package! Our packages will include cathedral port, square port, and rectangular port cylinder heads to accommodate LS1, LS2, LS3, L99, LS6, LS7, LSA, LQ4, LQ9, L83, L86, LT1, and more!. That changed in 2001 when GM threw in the bigger cam and aluminum heads designed for the LQ9. 0-inch bore and 3. 0L LS Stroker Build With Crane Cams Our test engine started out life as an LQ4 6. Bolting a set of LS6 heads to the iron block, the LQ4 was born. 3 Symptoms of a Blown Cylinder Head Gasket A cylinder head gasket is bound to blow out after a while. LQ9 only came in the Escalade and Denali's, so there are fewer of them. The name first appeared in a 1984 advertisement for the 1985 model year 4. yea they will bolt right up. Chevrolet Silverado 6. they will bolt right up and should give you i think around 10. 6 mm) bore and 3. 59 valves, flow ~320-330 and are cheap. Pricing is for work applied to a pair (2) of cylinder head castings and components YOU supply unless otherwise noted. 0-inch (101. The price listed is for you sending your cathedral port cylinder heads (4. CNC LS3/LS7 CYLINDER HEADS. All other features are the same as previous years iron heads. 0 mm) stroke. 0LBase Engine, or Stage 1 Engine, is designed for those that may have their own component parts already and who also are interested in completing out the build themselves. The motor has 243 heads with Brian Tooley Racing dual valve springs and valves. 3, LS2, LQ4 & LQ9 Engines! Using the latest and greatest technology available, we've put together a complete line of Camshafts that are designed to meet every goal, from mild to wild. This 1973 Camaro has an LQ4 truck motor bottom end with LS3 heads, and lays down solid numbers on the dyno. West Coast Stage 2 CNC LS3/L92 Cylinder Heads $ 2,561. You'll need to mill the heads to raise the compression and would do better a custom grind cam. decisions decisions[/quote'] The L92 heads use 2. ***THIS ITEM HAS A $450. Current Backlog for most types of heads is 3-4 weeks. 3HO 799 heads onto a LQ4. 408 LQ4 or LS3 Discussion in 'Z same head for optimum power, basically both the same engine with a few differences here and there. Vortec is a trademarked name for a line of small block engines for General Motors trucks. I am going to take the 317 heads off my LQ4 later on and swap on some 243(or 799) or better heads to bump the compression. Each of the three also come with different heads. West Coast Stage 2 6. Find Lq4 in Engine & Engine Parts | Find a car engine for sale locally in Alberta : gas and diesel engines, alternators, carburetors, crankshafts and more and make your car more powerful. Find ATK High Performance Chevy LQ4 6. full set head set federal mogul fel-pro gaskets felpro marine valve cover set stem seals exhaust intake manifold set inc chemical conversion cylinder head gaskets intake manifold gaskets exhaust manifold gaskets oil pan gaskets product auto catalog chevy parts daewoo parts ford parts nissan parts toyota parts. (This raised the compression ratio, horsepower, and torque. Chevrolet Used Engines Market. My new youtube channel can be found here : https://www. 78 bore I believe or there about so it won't work. The heads got ported and polished, and they're now rectangular-ported LS3 pieces. I'm trying to keep it simple, 6. About the The Vortec 6000 LQ4. Should be aluminum 317 castings. Iron heads, small cam and the old SBC crank rear flange thickness. All other features are the same as previous years iron heads. Patriot Performance LS1 / LS6 / LS2 Series heads come fully assembled and can handle blown or nitrous applications. I'm running PRC Stage 2. It was even better with 4. The best part is you can buy these heads assembled for $1,050, for the pair. This got me thinking that I should be able to pull right at 40hp less than Jims project with the stock heads. The block is unlikely to distort except after severe overheating, but check anyway using a steel ruler or similar high-quality straight-edge. What will the motor be used for though? The cathedral port heads will pretty easily support 500hp, so the extra cost of going to the rectangle port heads (which also means a new intake manifold, which ain't cheap) may not really pay off if the cathedral port heads can support the power he wants to make. Shop with confidence. The cylinder heads were bolted up using factory GM head gaskets and ARP bolts. NEW KIT: Chrysler Big Block Head Studs for Edelbrock 77919/77929 Heads NEW KIT: Dodge Viper SRT10- Harmonic Damper Bolt Kit NEW KIT: Volkswagen/Audi FSI/TFSI, M9 ARP2000 Rod Bolt Kit. IF A RE-BUILDABLE CORE IS SENT BACK, YOU WILL BE REFUNDED $450. I don't want to have to run a big stall and get crappy gas mileage just to be a little faster. im lookin for a all motor set up or even maybe down the road throw some spray at it but dont know which motor would work best for me lq4 or lq9. All in all the block it's self is the same from what I could find. To create our LQ4, we installed a set of 6. LQ9 has flat pistons, hence the comp difference and were in escalades and silverado SS trucks. 0 truck motor from 2002/03 had aluminum heads. Navigate: StoreFront / Cylinder Head Parts & Services / Cylinder Head Services / CNC Port LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR). And 500hp out of a mild cam, stock L92s aint gonna happen with an Lq4. basically they took a bone stock lq4 installed a set of the new L92 heads from the new 6. 3, LS2, LQ4 & LQ9 Engines! Using the latest and greatest technology available, we've put together a complete line of Camshafts that are designed to meet every goal, from mild to wild. It is an iron/aluminum (1999 & 2000 model year engines had cast iron heads) design. I'm trying to keep it simple, 6. 0 inch bore and lower 10. 0-inch (101. 6 mm bore and 92 mm stroke. 0L truck motor, but it was upgraded to 408ci status thanks to a Scat rotating assembly. What you need to know: The LQ4 head received aluminum heads starting in models year 2001. That means an option available from GM when the truck was new. See if you can find someone on LS1Tech selling new L92 heads. OK this is a GM LS1 type engine (gen III) LQ4 LQ9. 0l LS2 engines will be covered in another thread. 622-inch stroke.