CHEV LS3 495HP 6.2L CHEV PERFORMANCE CRATE ENGINE WITH HOT CAM KIT 19434638CRATE ENGINE LS3 495HP Crate Engine Family: Chevy LS Actual Engine Displacement: 6. 2L 376 Crate Engine Cylinder Head Material: Aluminum Engine Block Material: Aluminum Advertised Compression Ratio: 10. 7: 1 Assembled: Yes Engine Balance: Internal Cam Style: Hydraulic roller, OE roller Rear Main Seal Style: 1 piece Intake Manifold Included: Yes Intake Manifold Style: Fuel Injection Cylinder Heads Included: Yes Carburetor Included: No Throttle Body