Products specifications

Bore	3.572"
Fitment	Vehicle Specific
Comp Distance	1.220"
Comp Ratio	9.63:1 @ 42cc,8.62:1 @ 51cc, 8.52:1 @ 52cc
Piston Type	18cc Spherical Dish
Rod Length	5.933"
Stroke	3.543"
Weight	390g (w/ Pin 478g)