About 8,890 results
Open links in new tab
  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, and …

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

    Home Knowledge Base - Home HE-04809Chevy LQ4 Engine Specs

  3. 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 Headers An …

  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 world.

  5. All about Flexplates, Converters, Transmissions and Spacers

    Jan 7, 2017 · It appears that most (all?) LQ4 6.0l Vortec truck engine have the long crank; there are reports that some 4.8l Vortec engines also have the long crank. Obviously these long crank engines …

  6. LQ4 into Volvo 240: Intake Manifold Questions - LS1TECH

    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 Volvo …

  7. 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 wondering if it …

  8. 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**

  9. Lq4 engine - LS1TECH - Camaro and Firebird Forum Discussion

    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 contacted some …

  10. I have an early LS engine with a long crank. What do I need to bolt-up ...

    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 early LQ4 …