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Lq9 engine years?
All LS engines are pushrod V8s with aluminum cylinder heads. 0 LQ9 engine is a powerful and reliable V8 engine that has been used in a variety of Chevrolet vehicles. Shop Short Block Engines at Summit Racing. The hood had a special bulge for the turbo, but the engine was not very reliable. 6 mm bore and 92 mm stroke. Mount & Bolts NEW Bracket GM Truck Vortec LS Swap Engine Cover OEM Max 6000 LQ9. number on left rear just below deck of iron block-0426409131 like to know build date to recieve correct parts. Shop LQ9 Chevy LS V8, Engine Dress Up Kits and get Free Shipping on orders over $149 at Speedway Motors. High mileage LS engine teardown. This 370ci LQ9 Long Block utilizes LS3 cylinder heads to provide extra breathing capacity. LU5 came with functional cowl induction. The engine has set im my garage for a year now. The engine features a cast iron block and aluminum heads, providing a balance between durability and weight reduction. It has a displacement of 6. Feb 2, 2018 · The LQ9 is a 6 3 small block engine used in GM trucks between 2002 and 2007. The LS engines designed with 799 heads were 58L truck engines. With a rich history spanning over 80 years, Mercury has consistently deliver. However, the general rebuilding process is the same. 0L LS & Vortec Engine Spec Guide. The LQ4 and LQ9 have very strong blocks. One of the key features of the LQ9 engine is its use of the Gen III small-block architecture. Opens in a new window or tab $3,263 enginesdirect (1,666) 97 Buy It Now Engine Tech And Modification ; LQ9 build cam suggestions LQ9 build cam suggestions Year of truck: 2003 Trans: T56, 3 Converter: N/A10. Displacement (cu in): 364 cu in (6. 0:1, which contributes to its impressive power output. A lot of this is possible due to the similarities shared across the LS line over the years. R race engine that were CNC-ported from the factory. While eating “gluten-free” has for some reason turned into the hip thing to do in recent years, for h. The LS6/LS2 casting is best suited for higher-compression, naturally aspirated engines and 75- to 150-hp shots of nitrous. I would do a built 4l65/70! Its the same as the 60 but stronger guts. Here are some vehicles that typically ran on the LQ9 engine: Cadillac Escalade AWD (2002-2006): The LQ9 engine was standard in the Cadillac Escalade, providing the luxury SUV with. Known for their durability and reliability, these engines have powered everything from agricultural. LQ9 Engine Specs (VIN "N") The information listed here is for the stock engine. But, most people just refer to all of them as LS engines due to their immense similarity. By Mangione August 10, 2011 in Engine Tech And Modification Year: 2003; Drivetrain: AWD; Report;. Talk to the experts979. Would You Believe 751 Hp With Magnuson's Latest 1900-Series High-Helix Blower And Alcohol Injection. It was first introduced in 2002 and quickly gained a reputation for its impressive power and reliability. The core for our build was a 6. OEM Crank Position Sensor Indmar 6. Anyone have any cam recommendations for an LQ9 with LS3 heads and intake? This is going into a 70' Chevelle with a (forthcoming) T56. 2L engine thru the 2013 model year was not AFM in the 1500 trucks2L in the SUV did have AFM though. In March, Amazon founder Jeff Bezos announced that, after a year of searching, his team had dredged up several F-1 engines, remnants of the Apollo space program, from the ocean flo. The LQ9 was also known as the Vortec HO 6000 or the VortecMAX. All of our turn-key crate engines include a custom engine harness and ECM that can be built to run your electronic transmission for no additional charge! Jul 24, 2018 · “The customer plans on running a 80mm turbo with 15 psi of boost,” says the owner of Golen Engine Service, Chad Golen. 0L 550HP / 490TQ LQ9-LB-1 parts at JEGS. In 2005, eight years after the introduction of the LS1, the Gen III engines were superseded by the Gen IV engine family. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The LQ4 and LQ9 6 The Gen III engine many automotive enthusiasts desire is the 6. For its performance specifications, its compression ratio is 10 The LQ9 horsepower rating is 345 hp, and the torque rating is 380 ft/lb. The first Gen IV (LS2) premiered in the 6 LS2 and LQ9 blocks feature a 4. This build features the Cast Iron LQ9 6 bolt block. For marketing purposes, it was also known as the Vortec HO 6000 or VortecMAX. However, the LQ9 will certainly provide more power output, up to 15 – 20 horsepower, when optimized compared to the LQ4 LQ4 Block. Boasting an impressive 345 horsepower , this Vortec-based powerplant was capable of putting out some serious torque at 379 ft/lbs with plenty of potential for more. The ad doesnt have much info so I am obviously looking for more from the seller I have been lurking for years after being a pretty active poster. We stand behind our work with a standard three-year warranty with no mileage limit. This means you can expect to receive the same level of performance and reliability from this machine throughout its lifetime. For 1990, the Firebird got a driver's-side airbag as standard for the first time, and the base got a new rear spoiler. LS2. At its inception, Daum s. 3L V8 Vortec LC9 was an engine produced by General Motors for use in the 2006-2014 GMT900-based Chevrolet Suburban 4WD and GMC Yukon XL 4WD Elderly Man Reunited With 1967 Chevy Camaro. 317 and were also used on some late LQ4 engines. The engine will be complete wi. 0L LQ9 Marine Engine. 0L, or 364 cubic inches, from a 4 408 LQ9 Budget Engine Build - Finance-Friendly 408, Part 2. Give us a call today to get a quote on your turn-key crate engine! Showing all 3 results LQ4/LQ9. The LQ9 was an improved, high-output version of the LQ4. First introduced in the 2005 Chevrolet Corvette C6, Chevrolet SSR, Pontiac GTO Andy Kilmar knows cars inside out after working on them for 11 years. The engine shares many features with the LS1 engine used in. Observe all safety precautions and warnings in the service manuals when installing a crate engine in any vehicle. Terry show you what to look for and. Years Liter Code Vehicle Cam Bolts Reluctor VVT AFM Flex Fuel VIN (8th Digit) Block Head. Find many great new & used options and get the best deals for Chevy lq9 6. 0 with 799 (243) heads bowl blended. Year: Make: Model: Engine: Crankshaft Reluctor Tooth Count: Camshaft Gear Count: Cam Gear Bolt Pattern: PCM/ECM Type: 2004: Buick: Rainier: 5. Preparing for the Graduate Aptitude Test in Engineering (GATE) can be a daunting task. Known for their durability and reliability, these engines have powered everything from agricultural. [Editor's Note: This LY6 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. Lister engines have been a popular choice in various industries for many years. I have a Texas Speed 550+ hp LQ9 and was wondering what temperature to set the ECM to turn the fans on at?. locanto atlanta These simple tweaks bumped output to 352 hp. 0L into the Gen 4 model with the introduction of the LY6 Year(s) Engine RPO; Ascender: 2003-04: 5. When shopping, it's important to do your homework0L iron-block engines out there, the LQ9 (345 hp. Look no further than GM's 6. Years Liter Code Vehicle Cam Bolts Reluctor VVT AFM Flex Fuel VIN (8th Digit) Block Head. The LQ9 was an improved, high-output version of the LQ4. 0 with 317 (71 or 72 cc stock) heads and rated at a 9 The 243/799 heads are 64 or 65 cc. I really wanted a 05-06 escalade short version w/ the LQ9 engine there hard to find w/ lower miles. Look no further than GM's 6. 0L) didn’t start until 1999 – in the new GM Pickup Trucks (GMT-800s). The stock low compression LQ9 heads are good for us FI guysso is there anyone. Lq9 Engine Years. 0L block has its displacement cast into the front driver side of the block below the water pump. ) What's more legendary than the LS engine? With over 20 years in production, the LS has become the chosen V8 for many an engine builder You could choose to start with a LQ4/LQ9 iron GM 6 These blocks are commonly found in 2000-2006 GM full-sized trucks, vans and SUVs. _____ C5 Tech - Anyone using the LQ9 6. Mount & Bolts NEW Bracket GM Truck Vortec LS Swap Engine Cover OEM Max 6000 LQ9. Ford engineer Victoria Schein has some great advice for young girlsF Victoria Schein was the only woman in her internship group at Ford (F) "I learned that it's ok to be the on. 0 as it already is a 6. brownsville police station 0-liter Chevy V8 engine comes from a family of engines that, over the years, has become one of the most trustworthy V8 engines in recent decades The LQ9 does surprisingly well on fuel economy for its increased power output. High mileage LS engine teardown. 0's had just two engine codes, the LQ4 and LQ9. Opens in a new window or tab $4,750 Was: $5,000 or Best Offer +$350 130 watchers Over 90 Years Of Quality Trusted Business and Service $2,846 Buy It Now Sponsored. An in-depth look at the LS engine series offerings over the years. In a world dominated by Google, it’s easy to forget that there are other search engines out there. We can also assist you in picking out the correct motor mount and header combo that will fit your hot rod. One of the key factors that sets SRM Universit. This build features the Cast Iron LQ9 6 bolt block All Proformance Unlimited turn-key engine packages will come standard with a one-year, unlimited-mile warranty as standard! This will require all tuning to be performed by us. We stand behind our. 0L: 345 hp: 380 lb-ft: 2002-2006 Cadillac Escalade 2003-2007 Chevy Silverado-2003-2007 GMC Sierra: LY6: 6 That said, I have solid engine knowledge and have been fascinated with all sorts of cars, and engines, for 30 years. 0L LS & Vortec Engine Spec Guide. We stand behind our work with a standard three-year warranty with no mileage limit. In addition to offering unparalleled strength, many of the latest aftermarket castings boast raised cam locations, spread oil pan rails, and extra-thick cylinder walls that up the displacement ante and simplify the process of building a big-inch stroker motor. This quick video shows how to not only identify the size of a LS engine but also what type of LS engine your looking at. what is 8 teaspoons equal to Comes ready to install with the Muscle Car oil pan, Complete Fuel Injected Unit ECM and Harness. And that filter did not fit well, so. New set of Gen III/IV LSx block plugs. May 14, 2008 · About the head bolts, in 05+ the lq9 and lq4 head bolts are all the same size. But as luck would have it, all I could find on the net was info for the 5 The LQ4 engine displaces 6. ” Once an iron LQ9 block was acquired, Golen went to work to set all the specs exactly as he wanted them, to have a perfect base on which to build. Would You Believe 751 Hp With Magnuson's Latest 1900-Series High-Helix Blower And Alcohol Injection. Thanks, dreddy Anybody know what oil filter I am supposed to use on my 2005 XStar with the 6. Motor of the Month; LS/LT Engines. Here we take a close look at this beloved children's character. It has a displacement of 6. Non-ethanol gasoline has been gaining popularity in recent years as an alternative to ethanol-blended gasoline. If you are in need of a serpentine pulley kit. The rectangular intake ports provide additional volume and flow in the mid and upper RPM ranges This Prestige Motorsports engine is built to order and comes with a 3-year, unlimited miles warranty Find ATK High Performance GM 365 LQ9 550 HP Stage 1 Long Block Crate Engines and get Free Shipping on Orders Over $109 at Summit Racing! ATK High Performance GM 365 LQ9 550 hp Stage 1 long block crate engines offer streetable horsepower producing big mid- to upper-end power with a noticeable idle. Engine Rebuilding Services.
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NUMBER ON LEFT REAR JUST BELOW DECK OF IRON BLOCK-0426409131 LIKE TO KNOW BUILD DATE TO RECIEVE CORRECT PARTS Check out LS Engine King's complete line of LQ9 turn-key crate engines! We offer 370, 408, and 420 CID LQ9 packages with power ranging from 520 HP all the way up to 625 HP. LQ9 is the RPO (regular production option) code for the 6. It was first introduced in 2002 and quickly gained a reputation for its impressive power and reliability. The hood had a special bulge for the turbo, but the engine was not very reliable. 7-liter Cummins turbo diesel engine is approximately 12 quarts, and it is available in three variations as of the company’s 2013 model year Have you ever wondered how to find the engine size of a vehicle just by looking at its VIN number? The Vehicle Identification Number, or VIN, is a unique code that contains importa. 0L Short Blocks with qualifying orders of $109. Modern Vortec engines are named for their approximate. With certain care and maintenance, the engine will last long. All 24x crank sensor engines are 1x cam gear engines. * Year range: 2001-2007 * Displacement: 370 cd. 0 L LQ9, Gen III Engine Casting Numbers & Date Code Locations LQ4/LQ9. 18 psig at 2,000 engine RPM. For its performance specifications, its compression ratio is 10 The LQ9 horsepower rating is 345 hp, and the torque rating is 380 ft/lb. That's when the LS family was replaced by the current Gen V LT engine group, again, designed for use across the car, SUVs and pickup segments For example, one source says the LS1 Corvette had a 75mm throttle body while the LQ4 and LQ9 truck engines came. you'd just want to use the stock GM (and only GM) replacement head gaskets. History of the LS Engine and Cylinder Head Casting Number Spotter's Guide: LS1, LS6, LS2, LS3, LS4, L99, LS7, LSA, LS9, LQ9, LQ4, L92, L94. 2 lb/hr @ 58 psi: L33: Multec: 17113698 25 Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to. 0 L CAM TYPE Overhead valves (OHV) CYLINDERS V8 VALVES 16 TORQUE 360 ft-lbs. past lives showtimes near college point multiplex cinemas Who can balance them just a. 6 mm bore and 92 mm stroke. LQ4 is low compression (9 Cathedral port heads LQ9 is high compression (10 Cathedral port heads LY6 is low compression (9 Rectangular port heads History. I have an '03 X30 with the LQ9 engine. An in-depth look at the LS engine series offerings over the years. I am looking at looking at a 2003 TT197. Eventually it was replaced by GM’s new for 1997 Gen III LS engine, first seen in the 1997 model year Corvette as the LS1 where it replaced the Gen II LT1 as the Corvette’s standard engine. With a displacement of 6. Comes ready to install with the Muscle Car oil pan, Complete Fuel Injected Unit ECM and Harness. Below you'll find pictures and descriptions to help you spot the important differences followed by an identification chart organized by displacement. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Though the dozens of engines in the GM LS and LT families have many similarities,. Even in their stock forms they make more power and are more reliable the the first gen small blocks ever were in their heyday LQ9: 3645 (4. Ac motor just locked up this year. 0Ls, with the base workhorse LQ4. The LQ9 is a high performance version of the LQ4, with an extra 15-45 horsepower and 10-20 lb-ft of torque. The Escalade was introduced for the 1999 model year in response to an influx of new luxury SUVs in the late 1990s such as the Mercedes-Benz M-Class, Range Rover, Lexus LX, and (especially) Ford's 1998. NOT all Escalades or Denali’s came with LQ9’s. An in-depth look at the LS engine series offerings over the years. winndixie ad These will be found on the front of the engine, underneath the driver's side cylinder head, to the right of the water pump, as shown in the attached pictures. Engine Type: Performance LQ9 long-block; Displacement (cu): 364 cu (6. 0L LQ9 V8: Transmission(s) 4-Speed Auto Jul 25, 2022 · Some engines have more oil consumption than others which can cause the spark plugs to fail even more frequently. Until the age of 21, I had several New Year's resolutions to learn Spanish that never panned out. " Written by Will Handzel and Posted with Permission of. The mighty 7. The LQ9 is a high performance version of the LQ4, with an extra 15-45 horsepower and 10-20 lb-ft of torque. But years of service tend to wear out and stretch the belt Foad Dabiri said that Twitter before and after Elon Musk's $44 billion takeover were "two distinct eras. After I fill the ballast and have about 4 people on the boat, it takes about 20 seconds (give or take) to get to 20mph. LS364/450HP Crate Engine. With certain care and maintenance, the engine will last long. It replaced the LY6 and added Flex Fuel capability. He starting taking it apart, took off one header and quit. Look no further than GM's 6. I've had the truck for 16 years and don't. Power Torque offers a 3-year unlimited mileage warranty on their engines. I have a Texas Speed 550+ hp LQ9 and was wondering what temperature to set the ECM to turn the fans on at?. One name that has been making waves in this field i. my friends has a tige(22i) with 340 and his boat pulls you right out of the water(at least twice as fast as my boat). kaitlyn krems boob Opens in a new window or tab 03-06 GMC Yukon Denali Cadillac Escalade Vortec 6000 LQ4 LQ9 Engine Cover 3 Set. 8L: L20: L20 Upgrade Guide: L20. 0L LS series V-8 and I would like to switch cams but yet keep it streetable. Needs power steering pump replaced and just put all new break lines on. The Federal Aviation Administration announced Wednesday that it's requi. 0L VORTEC LQ9 LS Escalade Silverado Suburban: Engine Kits - Amazon. The heads are assembled with all new components and vacuum tested for a good valve seal. LQ9 is the RPO (regular production option) code for the 6. It features a sturdy iron block, but like the aluminum-block versions, the LQ9 has a deep-skirt, six-bolt-main block, with structural oil pan and other carefully engineered features to help make it a smooth running and strong engine. 0 liter engine? - I'm wondering if there's any advantage to using the LQ9 6. Subject: LQ9 Draining Instructions Besides the normal winterization steps such as changing the oil, removing/inspecting the raw water pump impeller etc. 0L LS & Vortec Engine Spec Guide Oct 3, 2019 · This is the ultimate LS engine swap or engine upgrade resource. 8L: L20: L20 Upgrade Guide: L20. It was introduced in 2002 for the Cadillac Escalade. For marketing purposes, it was also known as the Vortec 6000. Hey I have the Lq9 in my truck but i broke the crank. 2004 CHEVY SILVERADO 6. The LQ9 had a name change in 2006 and went by VortecMax, and was marketed as Vortec HO 6000 during its production years. 24 psig at 4,000 engine RPM Front Cover Alignment - at Oil Pan Surface ; 05 mm0-0 Rear Cover Alignment - at Oil Pan Surface ; 05 mm0-0 Oil Pan Alignment - to Rear of Engine Block at Transmission Bell Housing Mounting. Would You Believe 751 Hp With Magnuson's Latest 1900-Series High-Helix Blower And Alcohol Injection. This guide is specifically for the GM LQ4 engine. " He quickly added; "You. The LQ9 is a 3rd Generation LS engine produced between 2002 and 2007 and was originally meant for Cadillac.
18 psig at 2,000 engine RPM. 0L displacement, but LYS has a higher compression ratio and a different cylinder head design LQ9: Introduction Year: 2007: 2002: Engine Family: Generation IV small-block V8: Generation IV small. 0 LQ9 ENGINE TRANS 4L65E PULL OUT. Thanks in advance, Gary. annie kpa 1982 Camaro Engines - The Ceasefire Engine. Allows LS Gen III knock sensors to be retained and relocated from the valley pan area to the bottom edge of the engine block. 6 x 92 mm) Block: Cast iron with 6-bolt block, cross-bolted main caps • Engine is compatible with a vehicle's existing Gen III controller, but tuning is required 370 LQ9 Long Block Engine: L370-HR-LB4-1. I'm working on a budget swap, taking the L94 out of my 2012 truck and thinking about replacing with a 6 It looks like the L96 is plug and play with a tune. 0 with the L76/LS3 heads. Our GM LQ9 engine needs the right ingredients to turn it into a spicy hot rod street bullet. miami license appointment The Cadillac Escalade is a full-size luxury SUV manufactured by General Motors and marketed by their luxury division Cadillac. An in-depth look at the LS engine series offerings over the years. Now, he's sharing his car secrets on a blog. For example, the first engines of this type had 175 horsepower. Later models, such. The LQ9 is a 6 3 small block engine used in GM trucks between 2002 and 2007. big tyme billiards houston tx 0 L LQ9, Gen III Engine Casting Numbers & Date Code Locations LQ4/LQ9. 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. May 10, 2021 · Aluminum-block truck LS engines have a 6. Here at Powertrain Guys, you can order a used Chevy LQ9 engine on sale from this page.
Needs power steering pump replaced and just put all new break lines on. 12551364 - 1998-1999 LQ4, 2001-2005 LQ4/LQ9 12559090 - 1998 LS1 (mid-year revision with new cam bushing material). Ac motor just locked up this year. The LS engines for sale here. Yeah I see what your saying not sure what year the lq4 is either or not yet ne ways. 4 days ago · Free Shipping - ATK High Performance Chevy LQ9 6. Allows LS Gen III knock sensors to be retained and relocated from the valley pan area to the bottom edge of the engine block. 0 has had 9 variations throughout the years and the most popular vehicles that are equipped with it were the heavy-duty model of the Sierra and Silverado, Suburban, 0L small-block engine was also known as the Vortec HO 6000 or VortecMAX. It replaced the LQ4 and LQ9 as the Vortec 6000. This build features the Cast Iron LQ9 6 bolt block. my friends has a tige(22i) with 340 and his boat pulls you right out of the water(at least twice as fast as my boat). Opens in a new window or tab $179 Gen1 Chevy V8 engines have a crank flange that extends. In late 2006 the LQ9 Vortec MAX was replaced with the L76 engine code which had a slightly higher horsepower output ('04 sierra w 6. However, the LQ9 will certainly provide more power output, up to 15 - 20 horsepower, when optimized compared to the LQ4 LQ4 Block. The addition of variable valve timing helps broaden the powerband as well. The engine specs and information listed here is for a stock L96 engine. Terry show you what to look for and. While eating “gluten-free” has for some reason turned into the hip thing to do in recent years, for h. CTO John Stecher explains the strategy. Is The LQ9 A Good Engine? The LQ9 is a Third Generation LS engine from GM, designed for trucks, SUVs, and vans. That means there are lots of old Tecumseh engines out there, plus outdoor pow. We can also assist you in picking out the correct motor mount and header combo that will fit your hot rod. 8L General Motors GM 5. calibration sheet for cricut pdf The casting number can be found on the engine block, typically on the passenger side of the engine near the rear. While eating “gluten-free” has for some reason turned into the hip thing to do in recent years, for h. Mount & Bolts NEW Bracket GM Truck Vortec LS Swap Engine Cover OEM Max 6000 LQ9. Sep 25, 2016 · The LQ4 and LQ9 6 The Gen III engine many automotive enthusiasts desire is the 6. 0L LQ4 and LQ9 are iron blocks, only difference between them is compression ration. 0L displacement; All-aluminum car LS engines have 57L, 62L, and 7. LU5 came with functional cowl induction. 0L: 345 hp: 380 lb-ft: 2002-2006 Cadillac Escalade 2003-2007 Chevy Silverado-2003-2007 GMC Sierra: LY6: 6 That said, I have solid engine knowledge and have been fascinated with all sorts of cars, and engines, for 30 years. BBC Engines; BBC Short Blocks; Gen V LT Shortblocks; LS Engines; LS Short Blocks; ATK Signature Series; GM Crate Engines. It was introduced in 2002 for the Cadillac Escalade. LQ4, LQ9) and early Gen IV V8 engines (2005 LS2 Corvette, 2005-2006 LS2 GTO, 2005-2006 LS2 SSR). These projects play a crucial role in various in. Do you know if there are other 6. Nov 30, 2013 · It was originally mated to a 4L65e AWD transmission. Our complete LQ9 420CI 600HP stroker crate engine package dyno tested ready for installation. Chevrolet Silverado SS Quick Facts; Available Models: Silverado 1500: Model Year Availability: 2003 – 2006: Engine(s) 6. helicopter project zomboid Despite Chevy's notoriety for reliable V8s, a few variants of the Chevy 6. It is a bored version of the Vortec 53000 L (≈366 cu in) from 101. This guide is specifically for the GM LQ4 engine. Proformance Unlimited's complete line of LQ9/LS6 turn-key crate engines! We offer 364, 408, and 420 CID LQ9/LS6 packages with power ranging from 480 HP. ATK Elite Series Engines. A lot of this is possible due to the similarities shared across the LS line over the years. PISTON/RING SIZE: MAIN BEARINGS: ROD BEARINGS: + 6 The LQ4 & LQ9 are very closely linked, the LQ9 has LS6 based heads with the same combustion chamber volume as the LQ4. has it that way for 6-7 years now with no overheat in trans with a 4,000 stall Like. Sep 1, 2017 · This guide is an in-depth look at the LS engine series offerings over the years Reviews Magazines Gen IV (and Gen III LQ9) used "full floating" pins held in. On The Stock Bottom End! HOT ROD Staff Writer Dec 01, 2007. Known for its performance and durability, the LQ9 engine is a popular choice among enthusiasts and truck owners. Only real difference is pistons LQ4 had dished and LQ9 had flat tops (yes rods were different on early LQ4 and 99-00 had iron heads) Only way to tell is look at pistons or vin of donor save for 99-00 with iron heads as its an LQ4. Some Gen III engines were DBC. The 6. If you are in need of a serpentine pulley kit. 0:1, which contributes to its impressive power output. 0-liter and it comes in two varieties. It has a 4-inch bore that is compatible with the better L92 and LS7 heads but it sounds like the remainder of the electrical has other cocnerns too if you were to swap to a later year engine.