Lq9 idle rpm. Notes The information below applies to vehicles with the original engine Nov 2, 2011 · The LQ9 will be right up at 11. Upgrading the LQ4 and LQ9 Engines Getting more power out of my engine On a stock engine, the following upgrades can improve performance and fuel economy: A Cold Air Intake Kit Headers An Aftermarket Exhaust A Computer Programmer The LQ4 and LQ9 have very strong blocks. 0:1 with a 243 head on it but that is because they have a flat top piston. It was available in GM pickups until 2010. Many people use them with boost or nitrous. Consult the tables below to identify your engine. LS1 is 346 ci, LQx is 364. I Identify Chevy LS Engines by VIN Chevrolet's 3rd and 4th generation small block engines are generally known by their RPO code. However, there are differences between them too. 2:1 CR. Mar 5, 2010 · Generation III External Engine - The truck ignition coil upgrade - The truck ignition coil upgrade: Many GM trucks come with a different, more powerful ignition coil. 0L iron block, the LS1 is a 5. I got the kit that came with the double valve springs and 7. When it comes to Chevrolet's 3rd and 4th generation small blocks, there can be a lot of confusion. 629/. The LY6 used Variable Valve Timing (VVT). 400 pushrods. Swapping these coils into a LS1 equipped engine in a Camaro/Firebird has shown Sep 28, 2025 · Generation III Internal Engine - Testing stock oil filter bypass - Quick couple questions for you guys I'm going to do the first oil change on a truck with an lq9 that I got, and I saw that the oil filter bypass is built into the pan rather than the filter. 600 114 LSA. For specific details about these engines, please follow the links below: Chevy LQ4 Engine Specs Chevy LQ9 Engine Specs Upgrading the LQ4 and LQ9 Engines Benefits Both these engines are strong and durable. It replaced the LQ4 and LQ9 as the Vortec 6000. 3, 6. I posted a question about my LQ9 build but placed it in Internal Engine forum by accident (noob!). You can determine the RPO code if you have the Vehicle Identification Number (VIN) from the original vehicle. They can handle over 1,000 hp. I'm doing a forged LQ4 build, 370ci myself. My plan is to go with a set of prc 227 heads, Holley hi ram, 1 7/8 headers while running a 11. 0L engines. 550 Low-Lift cam: 1) LQ9 NA since 2018 2) 4. The LQ9 was also known as the Vortec HO 6000 or the VortecMAX. 7L aluminum block. 0L, Iron Block, Truck Engines LY6 The LY6 was introduced in 2007. A ported 243 might pick up 20-30 no problem but I don't think you can pick up that much power from a half point in compression. 8 with Magnuson @11PSI since 2016, Both are smooth, quiet, reliable long distance daily drivers- It's a Great Cam: good torque with stock converter, Mar 26, 2015 · Automatic Transmission - All about Flexplates, Converters, Transmissions and Spacers - When installing a different (non-stock) transmission there is often confusion over what flexplate to use and whether a spacer is needed. It May 17, 2012 · An LQ4 or LQ9 is a 6. LS Family: Gen. When swapping an LS engine into a custom Hotrod, there is even more confusion: long versus Sep 22, 2025 · Generation III Internal Engine - Cam selection - I have a lq9 out of a 05 Cadillac Escalade going into my 97 Chevy c1500. The only issue is that I?m stuck between two cams the tsp tsunami cam ( 235/240 . I Sep 13, 2025 · Generation III Internal Engine - . Locate the 8th digit of the VIN. 0L, Iron Block, Truck Engines The LQ9 was also known as the Vortec HO 6000 or the VortecMAX. 4, 6. I also upgraded the valvetrain with the CHE trunnion kit Jan 23, 2013 · Generation III External Engine - LQ9 243/799 vs 821/823 heads? - I sort of asked this question in the wrong forum. I went with the Texas Speed 224R cam . Along with the LY2, LY5, and LMG, it was one of the first 4th generation, LS truck engines. 600" lift for daily driver? - I have a couple long term rigs using the Texas Speed 212/218 . Anyways, I'm looking for recommendations for new heads, and I'm trying to keep this budget friendly. 600/. 3, Iron Block, LS Engines The following specs apply to RPO codes: LR4 LM7 L59 LQ4 LQ9 **Click the blue links in the table for more detailed information** Jan 23, 2013 · Generation III External Engine - LQ9 243/799 vs 821/823 heads? - I sort of asked this question in the wrong forum. These coils have round bodies and an aluminum heat sink on one end. 615 The LQ9 was also known as the Vortec HO 6000 or the VortecMAX. Your friend was wrong, an LQ9 will be better for naturally aspirated power. Identify Chevy LS Engines by Inspection Before you begin any project, you need to know the starting point. 0L, Iron Block, Truck Engines LS Family: Gen. The similarities between them make a lot of parts interchangeable. using nitrous, a blower, or a turbo. Gen. There are more than 40 variations of these engines. 615. This helped it make more Torque and Horsepower than the previous 6. I was wondering if there is any way to test it other than Sep 28, 2025 · Generation III Internal Engine - Small Lifter tick - If yall don?t mind helping a young fella out, I did a cam swap on my LQ9 gen 3. The LQx block architecture is identical to the LS2, but the LS2 is an aluminum block. To get the right parts LS Family: Gen. 615 LS Family: Gen. djqox 092m eeju lxnh ek4 iv w80d3kr dkd kxbewkq 7jspc