COPO 427 - 425 HP Crate Engine

Your Price: $27,055.87

Suggested Retail:  $34032.55

COPO 427 - 425 HP Crate Engine

Product Details

COPO 427 - 425 hp
The COPO 427 uses the large-bore cylinder block and high-flow
cylinder heads of the LS7 engine and complements them with
a high-compression rotating assembly to deliver big power from
its large displacement. Its lightweight aluminum block and
heads revive the spirit of the original ZL1 all-aluminum 427
Big-Block that helped forge the COPO legacy in 1969.

Displacement: 427 cu in (7.0L)
Compression Ratio: 13.5:1
Cylinder Block: LS7 cast aluminum
Bore x Stroke (in): 4.125 x 4.000
Crankshaft: Forged steel
Connecting Rods: Forged steel
Pistons: Forged dome
Cylinder Heads: LS7 aluminum
Induction: Natural
Intake Manifold: Holley Hi-Ram
Camshaft Type: Hydraulic roller
Camshaft Lift (int./exh.): .630/.630-inch
Camshaft Duration (int./exh.): 233/276 deg. @ .050-inch

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