1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 CRANK PIN

Part Number: 98-430

CRANK PIN - Part Number 98-430
The crank pin is the heart of your engine. Why take a chance? Everything revovles around this component! For that very reason, Jims has spent three years developing the ultimate 3 hole fuel drag bike crank pin. Jims starts with premium aerospace quality alloy bar steel, made to perfection for Jims. This chromium nickel molybdenum steel offers excellent strength and toughness. This is before heat treating to 60-62 RC, to a case depth of .100. Each pin is machined with a "J" thread, making the thread 20 - 30% tougher. Finally, eachpin is ground to a 16 micron finish with a diamond grinding wheel then polished to a 6 micron finish. Each "Cut Above" crank pin is the laser marked with its individual serial number for documentation. We also include two (2) Jims high performance crank pin nuts and key. Guaranteed - Against Failure! "A Cut Above" crank pins will be available in 3 hole only in the following part numbers:
Jims machining's drag bike 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974

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