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92. GM 502/502 Marinized Airboat Engine

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Our 502/502 Includes A Holley 870-Cfm Four-Barrel Carburetor, Dual-Plane Intake Manifold CNC-Port Matched To The Oval-Port Heads, Starter, Distributor, Plug Wires, Aluminum Water Pump And Our Dual Belt Alternator Pulley System Designed Specifically For Our Marine Airboat Application. (Alternator Not Included)


GM 502/502 Marinized Airboat Engine

Horsepower:
502 @ 5200 RPM
Torque:
567 Ft. Lbs. @ 4200 RPM
Max. Recommended RPM:
5800
Compression Ratio:
9.6:1
Block:
10237292 Cast iron - Four bolt main caps
Crankshaft:
10183723 Forged steel
Connecting Rods:
10198922 Forged steel - shot peened, 7/16" bolts
Pistons:
12533507 Forged aluminum
Piston Rings:
12524293
Camshaft:
12366543 Hydraulic roller
Lift .527" I, .544" E.
Duration @ .050: 224 I, 234 E.
Timing Chain:
3891519 Single Roller

Cylinder Heads:
12363390 Aluminum oval port 110cc combustion chambers
Intake Valves:
12366987 2.25" Stainless Steel
Exhaust Valves:
12366988 1.88" Stainless Steel
Valve Springs:
12462970
Rocker Arms:
12368082 1.7:1
Distributor:
1104067 HEI
Starter:
9000852 Gear Reduction
Intake Manifold:
12363407 Aluminum Holley flange
Carburetor:
12366996 Holley 850cfm
Water Pump:
14058915 Aluminum
Valve Lash:
Zero
Sparik Plugs:
R43XLS Gap .035 Rapid Fire #4 Gap .035
Fuel:
92 Octane
Ignition Timing:
10 BTDC @ 700 RPM.  No More than 32o Total Advance Wide Open with vacuum advance disconnected

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice.

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