Copo 327– 4.0L S/C 550 HP
The most powerful supercharged COPO crate engine is designed for NHRA’s A Super Stock class and uses a large, 4.0L compressor to generate tremendous horsepower. Its foundation is the sturdy LSX cylinder block, with a tough, all-forged rotating assembly and the big-displacement Whipple blower. Like the other COPO crate engines, this one uses the high-flow LSX-LS7 6-bolt heads to move as much air as possible.

327 TECH SPECS
Displacement: 327 cu in (5.3L)
Compression Ratio: 10.2:1
Cylinder Block: LSX Cast Iron
Bore x Stroke (in): 4.065 x 3.150
Crankshaft: Forged Steel
Connecting Rods: Forged Steel
Pistons: Forged Dome
Cylinder Heads: LSX-LS7 Aluminum
Induction: Boosted
Supercharger: 4.0L Whipple
Camshaft Type: Hydraulic Roller
Camshaft Lift (int./exh.): .650/.650-inch
Camshaft Duration (int./exh.) 244/255 deg. @.050-inch

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