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Chevrolet Performance 12624262 - LS9 Long Block

Free Shipping on the incredible 638hp LS9 from SDPC!

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°
*With production supercharger system not included.
Availability: In Stock - Orders by 2pm CST, ship within 1-2 business days.
Shipping: Free Shipping in the 48-States!
Pricing: $99,999.00

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  • Includes dry sump oil pan
  • Requires external oil tank
  • Requires external coolant tank
  • Requires external heat exchanger
  • Requires ECU/harness kit available from SDPC
  • Has 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


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  • 12624262
  • 12624262
  • Chevrolet Performance
  • In Stock - Orders by 2pm CST, ship within 1-2 business days.
  • New

Shipping Information

  • Item Requires Shipping
  • 377.0 lbs.
  • W31.1200” x H28.0000” x L31.2500”
  • Free Shipping!
  • Free Shipping in the 48-States!

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -