Products specifications

Block Height	9
Fitment	Engine Specific
Bore	4.145
CID	391
Comp Height	1.187
Comp Ratio @ 58cc	15.1:1
Comp Ratio @ 64cc	13.8:1
Comp Ratio @ 76cc	11.7:1
Dome Volume	10.5
Gram Weight	459
Oversize	0.02
Rod	6
Stroke	3.625