SPECIAL COMPETITION 66MM PISTON 

(AS USED BY MICK GRANT IN COMPETITION TRIALS)

DIMENSIONS:

OVERALL LENGTH = 66.45

CENTRE OF PIN TO CROWN = 34.0

PIN DIAMETER = 9/16" (14.2875)

DISTANCE BETWEEN PEGS = 50.0

CHROME -FACED RING THICKNESS = 1.0

DISTANCE FROM CROWN TO TOP RING GROOVE = 3.0

FULL KIT WITH PIN,RINGS AND CIRCLIPS