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  1. Chevy LS9 Engine Specs · Help Center - Summit Racing

    Chevy LS9 Engine Specs LS Family = Gen. 4, 6.2L, Aluminum Block, Supercharged Engines

  2. Intro to the LS9 and LSA · Help Center - Summit Racing

    Intro to the LS9 and LSA LS Family: Gen. 4, 6.2L, Aluminum Block, Supercharged Engines LS9 The LS9 was introduced in 2009 for the ZR1 Corvette. At the time, it was the most powerful …

  3. Upgrading the LS9 and LSA Engines · Help Center

    The LSA and LS9 engines make a lot of power. And, they can easily make more! Upgrades are usually done in stages. Each level will provide more performance than the one before it. …

  4. How do I install my LS cylinder heads? · Help Center

    Installation Procedure, Torque Specs and Sequence To properly install your LS Cylinder Heads, follow the steps below. This will prevent oil and coolant leaks and a loss of compression from a …

  5. I know my VIN. Which LS engine do I have? · Help Center

    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 …

  6. I don't know the VIN. Which LS engine do I have? · Help Center

    Intake Manifold The intake manifold will tell you whether the engine came from a truck or a car. The car manifold has a rounded top and you can see the contour of the intake runners. The …

  7. What is Engine Deck Clearance? · Help Center

    Definition and Description Deck clearance is the distance between the piston deck at TDC and the deck surface of the engine block. Negative Clearance: The piston protrudes slightly from the …

  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. What's the bore and stroke for an LS engine? · Help Center

    Chevy LS Engine Displacment, Bore and Stroke Chart For all Gen. 3 and 4 Chevy small block engines with the same Displacement, the Bore Diameter and Stroke Length are the same. The …

  10. Chevy LQ4 Engine Specs · Help Center

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