Details

LS9 6.2L SC V8 Crate Engine
604 lb.ft. @ 3,800 rpm 638 hp @ 6,500 rpm

World-conquering supercharged performance from the Corvette ZR1! Chevrolet Performance is thrilled to offer the LS9 6.2L supercharged in a fully dressed crate engine package that includes every one of the Corvette ZR1’s 638 horsepower! The LS9 is a technological marvel. High-rpm-validated lightweight reciprocating parts, including titanium intake valves, are used, along with high-flow cylinder heads that draw the charge forced on them by a sixth-generation supercharger. It has a high-helix (twist) design that helps the “blower” deliver greater power at the low-end and sustains it longer through the rpm band for broad, on-demand power, whether off-idle or at speed.
Chevrolet Performance's LS9 crate engine assembly includes the dry sump oil pan and provisions for the charge cooler’s liquid cooling system. You’ll need an external oil tank,* external coolant tank* (for the charge cooler) and ECU/wire harness* to get the baddest production LS engine of them all up and running in your project vehicle. It also includes a 9-bolt crankshaft flange that may require an adapter for use with some transmissions.

*Not available from GMPP.

LS9 6.2L SC V8 Crate Engine Installation Notes

14" manual transmission flywheel included.

Assembly does not include any electronics.

Forged pistons with oil-spray cooling.

Includes Corvette dry sump oil pan - requires production or aftermarket oil lines and oil tank (not included).

Intended for Pre-1976 street vehicles or any off-road vehicle.

Not intended for marine applications.

Crankshaft has unique 9-bolt flywheel mounting pattern.

Specification

Tech Specs

LS9 Tech Spec Engine type: LS-Series Gen IV Small-Block V-8 Displacement (cu in): 376 cu in (6.2L) Bore x stroke (in): 4.060 x 3.620 (103.25 x 92mm) Block: Cast-aluminum with 6-bolt, cross-bolted main caps Crankshaft: Forged Steel with 9-bolt fl ange Connecting rods: Forged titanium Pistons: Forged aluminum Camshaft type: Hydraulic roller Valve lift (in): .562" intake / .558" exhaust Camshaft Duration (@.050 in): 211° intake / 230° exhaust Cylinder Heads: Aluminum L92 style ports; as cast with 68cc chambers Valve size (in): 2.160 titanium intake / 1.590 hollow, sodium-fi lled exhaust Compression ratio: 9.1:1 Rocker arms: Investment-cast, roller trunnion Rocker arms: Investment-cast, roller trunnion Rocker arm ratio: 1.7:1 Recommended fuel: 92 octane Maximum recommended rpm: 6,600 Reluctor wheel: 58X Balanced: Internal

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