Chevrolet Performance 12624262 - LS9 Long Block

As the foundation for the supercharged engine that powered the 2009-13 Corvette ZR1, our LS9 is a long-block built for boost – delivered without the supercharger or front-end accessory drive system, allowing the builder to finish the engine with the power adder of his or her choice. It is rated for 12 lbs. of boost. Engine LS9 6.2L Horsepower* 638HP @ 6500RPM* Torque* 604FT/LBS @ 3800RPM* Compression Ratio 9.1:1 Block Cast aluminum with 6-bolt, cross-bolted main caps Crankshaft Forged steel, 3.622" Heads Aluminum L92; as cast with 68cc chambers Valves 2.16"/1.59" Camshaft Lift 0.562"/0.558" Hydraulic Roller Dur. @ 0.050" 211°/230° *Production supercharger system not included. LS9 Long Block Engine SKU: 12624262 Includes dry sump oil pan Requires an external oil tank Requires an external coolant tank Requires an external heat exchanger Requires ECU/harness kit available from SDPC Has a 9-bolt crankshaft flange that may require an adapter for differing transmissions Induction system and front-end accessory drive system not included Not intended for marine applications