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  1. 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, …

  2. Upgrading the LQ4 and LQ9 Engines · Help Center - Summit Racing

    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 …

  3. Chevy LQ4 Engine Specs · Help Center - Summit Racing

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

  4. 450+ hp LQ4 Build on a budget - LS1TECH

    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 …

  5. I have an early LS engine with a long crank. What do I need to bolt …

    Most GM transmissions will bolt on without an issue. The problem with most LS engines is the short crankshaft. The torque converter pilot is too short to engage the back of the crank. The …

  6. How much to you gain putting 243 heads on a lq4 - LS1TECH

    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 …

  7. Gen. 3, Iron Block Torque Specs · Help Center

    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**

  8. 2003 LQ4 specs PDF - LS1TECH - Camaro and Firebird Forum …

    Jan 17, 2010 · 2003 LQ4 specs PDF A technical documentation that provides detailed engineering specifications for the 2003 Chevrolet Chevy C Silverado 2WD, LQ4 VIN U engine. …

  9. lq4 408 build questions - LS1TECH - Camaro and Firebird Forum …

    May 23, 2017 · Carbureted LSX Forum - lq4 408 build questions - hey guys, what would be the best 408 ls stroker kit to go on my lq4? also what cam heads? its going in a 1990 s10 with a …

  10. LQ4-Stock 317's-Cam Only? - LS1TECH

    Feb 28, 2012 · LQ4-Stock 317's-Cam Only? Whos's done a cam only with the stock low compression 317's and how's it run? What cam are you guys running and any problems with …