GM Marine 8.2 Liter Marine Engine

GM Marine 8.2 Liter block

Displacement (cu. in.): 502

Bore x Stroke (in.): 4.470 x 4.000

Block : Cast-iron with four-bolt main caps

Crankshaft : Forged steel

Connecting Rods : Forged steel, shot peened

Pistons : Forged aluminum

Camshaft Type ( Custom Grind ): Hydraulic roller

Camshaft Duration (@.050 in.): 238 intake / 248 exhaust

Cylinder Heads : Iron rectangle port; 118-cc chambers

Valve Size (in.): 2.190 Stainless intake / 1.880 Inconel exhaust

Compression Ratio: 9.8:1

Rocker Arms : Ultra-Gol

Rocker Arm Ratio: 1.7:1

Flywheel : 14"

Recommended Fuel: Premium

Ignition Timing: 34? Total @ 3,200 rpm

Maximum Recommended rpm: 6200

Balanced: External

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