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Horsepower:
425@ 55400 RPM
Torque:
449 @ 5500 RPM
Max. Recommended RPM:
5800
Compression Ratio:
9.6:1
Block:
88962516 Four Bolt main, cast iron
Crankshaft:
12489436 4340 Forged steel
Connecting Rods:
12497624 PM rods
Pistons:
12499103 Hypereutectic Aluminum
Camshaft:
12370846 1 Hydraulic roller
Lift .509" I, .528" E.
Duration @ .050: .222° I, .230° E.
Intake Manifold:
10185063 Aluminum dual plane
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Distributor:
1104067 HEI
Cylinder Heads:
12556463 Aluminum 58cc combustion chambers
Intake Valves:
10168465 1.94"
Exhaust Valves:
10168514 1.50"
Valve Springs:
12551483 LT4 chrome silicon
Rocker Arms:
10089648 1.5 Ratio
Valve Lash:
Zero
Sparik Plugs:
FR5LS Gap .035 Rapid Fire #5 Gap .045
Fuel:
92 Octane
Ignition Timing:
10° BTDC @ 800 RPM
32° total @ 4000 RPM 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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