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, …

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 …

LS Family , Gen. 3, 6.0L, Iron Block, Truck Engines

Nov 6, 2012 · Generation III Internal Engine - 450+ hp LQ4 Build on a budget - I know this has been covered before and I know this is probably getting old. But I'm new to the engine building …

Gen. 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**

Dec 4, 2025 · Generation III Internal Engine - Lq4 engine - Hi, l have recently purchased a LQ4 6.0 truck motor. I was going to change the crank rods and pistons for twin turbo use. I have …

Mar 26, 2015 · Automatic Transmission - All about Flexplates, Converters, Transmissions and Spacers - When installing a different (non-stock) transmission there is often confusion over …

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 …

Nov 2, 2011 · Generation III Internal Engine - How much to you gain putting 243 heads on a lq4 - I don't know if it is even worth it but I am going to change the cam in my 2007 lq4 and was …

Jul 26, 2025 · Conversions & Swaps - LQ4 into Volvo 240: Intake Manifold Questions - Hi fellas, longtime lurker first time poster. Recently my dad gave me the old family station wagon (93 …