GM Perforomance Engine LS9

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.

LS9 Long Block Engine

  • 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
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°

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