
SIFTON PISTON SET IS STANDARD SIZE FOR A 3-5/8 BIG BORE. HAS A 9.75:1 COMPRESSION 3-5/8 BORE WITH A 4-1/2 STROKE FLYWHEEL.
**NOTE:RUN ENGINE AT MODERATE SPEEDS FOR AT LEAST 500 MILES AVOIDING EXCESSIVE RUNNING IN LOWER GEARS IN ORDER TO PROPERLY BREAK-IN NEW PISTONS AND RINGS.
FIT
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