Copo 350 325 HP
The entry-level COPO racing engine is a bit of a sleeper, that has capabilities far beyond what the modest specs might indicate. It’s high-flow LS3 cylinder heads help deliver high rpm power, that will move the car through the top-end lights quickly.

Copo 350 TECH SPECS
Displacement: 350 cu in (5.7L)
Compression Ratio: 10.7:1
Cylinder Block: LS7 Cast Aluminum
Bore x Stroke (in): 4.125 x 3.270
Crankshaft: Forged Steel
Connecting Rods: Forged Steel
Pistons: Forged Dome
Cylinder Heads: LS3 Aluminum
Induction: Natural
Intake Manifold: Holley Hi-Ram
Camshaft Type: Hydraulic Roller
Camshaft Lift (int./exh.): .525/.525-inch
Camshaft Duration (int./exh.): 226/236 deg. @ .050-inch