The LQ9 was also known as the Vortec HO 6000 or the VortecMAX. For specific details about these engines, please follow the links below: Chevy LQ4 Engine Specs Chevy LQ9 Engine …

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

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 …

LQ9 243/799 vs 821/823 heads? I sort of asked this question in the wrong forum. I posted a question about my LQ9 build but placed it in Internal Engine forum by accident (noob!). …

LS Family: Gen. 4, 6.0L, Iron Block, Truck Engines LY6 The LY6 was introduced in 2007. It replaced the LQ4 and LQ9 as the Vortec 6000. Along with the LY2, LY5, and LMG, it was one …

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**

Nov 11, 2025 · Generation III Internal Engine - LQ9 cam in L33 - Evening everyone, I've got an L33 I'm freshening up to put in my 68 cutlass. 100% cruiser; no plans to race or boost. I just …

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 …

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

Identify Chevy LS Engines by VIN Chevrolet's 3rd and 4th generation small block engines are generally known by their RPO code. You can determine the RPO code if you have the Vehicle …