Intro to the LQ4 and LQ9 · Help Center - Summit Racing
Intro to the LQ4 and LQ9 LS Family: Gen. 3, 6.0L, Iron Block, Truck Engines LQ4 The LQ4 was introduced in 1999 as one of the first LS truck engines. It was available in GM pickups, vans, and …
LQ4, LQ9, LM7, L59 difference - PerformanceTrucks.net Forums
2) What difference is the "high output in the LQ9 compared to the LQ4? The Piston's are the main difference. LQ9 uses a flat top piston and LQ4 has an -8cc dish in it. There is also a minor difference …
LS1 Crankshaft? Same as LQ4/LQ9 - LS1GTO Forums
Nov 14, 2010 · Alright I am going to be purchasing a brand new GM LQ9 block and had a few questions on crankshafts. I know the LS1 crankshaft has held 1000 hp but is there differences in the cranks …
6.0 LQ4 vs LQ9 - PerformanceTrucks.net Forums
Feb 3, 2023 · INTERNAL ENGINE MODIFICATIONS - 6.0 LQ4 vs LQ9 - I'm new on here and also new to chevy's. From what I can tell, an LQ4 is the same as an LQ9 except for the pistons and how much …
6.0L LQ9/LQ4 317 Heads vs 243 Heads? - LS1GTO Forums
Sep 29, 2008 · Looking at getting either 243 Heads or now I see these 317 Heads from an LQ9/LQ4 motor....what would be the difference?? Please help, searched but couldn't find anything real …
I don't know the VIN. Which LS engine do I have? · Help Center
Identify Chevy LS Engines by Inspection Before you begin any project, you need to know the starting point. When it comes to Chevrolet's 3rd and 4th generation small blocks, there can be a lot of …
Intro to the LY6 and L96 · Help Center - Summit Racing
It replaced the LQ4 and LQ9 as the Vortec 6000. Along with the LY2, LY5, and LMG, it was one of the first 4th generation, LS truck engines. The LY6 used Variable Valve Timing (VVT). This helped it …
LQ4/9 vs LS2 - LS1GTO Forums
Apr 25, 2005 · The LS2's got more compression than the LQ9. The LQ9's got more compression than the LQ4. And there goes the Challenger, being chased by the blue, blue meanies on wheels. The …
How to tell if I have a LQ9 or LQ4 this gets weird
GM Engine & Exhaust Performance - How to tell if I have a LQ9 or LQ4 this gets weird - I know I know, use the search, but I did that. Obviously the LQ9 has flat tops and the LQ4 is dish.
LQ4 vs. LQ9 - PerformanceTrucks.net Forums
Aug 11, 2003 · GM Engine & Exhaust Performance - LQ4 vs. LQ9 - Ok can someone tell me the diff between these two 6.0's. I have the chance to buy a 2002 LQ4 out of a wrecked 2500 hd for 1200. …