THE LAST OF A LEGEND!
When the C6 Corvette ZR1 went out of production, so did its unique LS9 supercharged engine. Chevrolet Performance acquired a finite number of them for use as crate engines and when they’re gone, they’re gone! Rated at 638 hp and 604 lb.-ft. of torque, the LS9 is a beast!
The engine 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.
Our 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 (not available from Chevrolet Performance), external coolant tank (for the charge cooler) and our LS9 Controller Kit, P/N 19354338, to get it running in your project vehicle. It also includes a 9-bolt crankshaft flange that may require an adapter for use with some transmissions.
Part Number: 19260165
Engine Type: LS-Series Gen IV Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block: Cast-aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12641693): Forged steel with 9-bolt flange
Connecting Rods (P/N 12624231): Forged titanium
Pistons (P/N 19180414): Forged aluminum
Camshaft Type (P/N 12638427): Hydraulic roller
Valve Lift (in): .562 intake / .558 exhaust
Camshaft Duration (@.050 in): 211° intake / 230° exhaust
Cylinder Heads (P/N 12621774): Aluminum L92-style ports; as cast with 68cc chambers
Valve Size (in): 2.160 titanium intake / 1.590 hollow, sodium-filled exhaust
Compression Ratio: 9.1:1
Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion
Rocker Arms (P/N 12669993 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Maximum Recommended rpm: 6,600
Reluctor Wheel: 58x
• 14" manual transmission flywheel included
• Assembly does not include any electronics
• Use LSA Engine Controller Kit for engine operation, P/N 19354338
• 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
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty.