GM 8.2L 502 CID V8 BASE MARINE ENGINE

BASE MARINE ENGINES

GM V8 8.2 L
502 CID

425 Horsepower V8 Marine Base Engine

Displacement 8.2L (502 cid)

Cylinders V8

Propshaft HP 425 (317 kw)

Operating RPM 4300-4600 rpm

Bore 4.47 in.

Stroke 4.00 in.

Compression 8.75:1

Engine Rotation Left & Right Hand

GM's 8.2L sheet
requires Adobe® Acrobat®

Product information and specifications are subject to change without notice.
GM MARINE ENGINES
• Engine is shipped with High-rise intake manifold.

• Cylinder head features sintered powdered-metal exhaust valve seat inserts for durability.

• Cylinder head features an open combustion chamber with high-velocity, high torque ports and canted valves for excellent performance.

• Connecting rods are forged from 4340 SAE steel (shot-peened and magnafluxed) and use 7/16" large diameter connecting rod bolts.

• Crankshaft is forged from 1053 SAE steel with ground fillets and nitrided bearing journals for durability.

• High-silicon forged aluminum pistons for strength.

• Heavy-duty marine camshaft with hydraulic roller valve lifters provides maximum performance.

• Superior engine sealing system features one-piece viton rear main seal, one-piece oil pan gasket and O-ring rubber rocker arm cover gasket. Engine also features a composite graphite cylinder head gasket.

• Common rear face on all GM marine engines for easy hook-up with housing.

BASE MARINE ENGINES
GM V8 8.2 L 502 CID 425 Horsepower V8 Marine Base Engine Displacement 8.2L (502 cid) Cylinders V8 Propshaft HP 425 (317 kw) Operating RPM 4300-4600 rpm Bore 4.47 in. Stroke 4.00 in. Compression 8.75:1 Engine Rotation Left & Right Hand GM's 8.2L sheet requires Adobe® Acrobat®	Product information and specifications are subject to change without notice.	GM MARINE ENGINES • Engine is shipped with High-rise intake manifold. • Cylinder head features sintered powdered-metal exhaust valve seat inserts for durability. • Cylinder head features an open combustion chamber with high-velocity, high torque ports and canted valves for excellent performance. • Connecting rods are forged from 4340 SAE steel (shot-peened and magnafluxed) and use 7/16" large diameter connecting rod bolts. • Crankshaft is forged from 1053 SAE steel with ground fillets and nitrided bearing journals for durability. • High-silicon forged aluminum pistons for strength. • Heavy-duty marine camshaft with hydraulic roller valve lifters provides maximum performance. • Superior engine sealing system features one-piece viton rear main seal, one-piece oil pan gasket and O-ring rubber rocker arm cover gasket. Engine also features a composite graphite cylinder head gasket. • Common rear face on all GM marine engines for easy hook-up with housing.