Products specifications

Block Height	9
Fitment	Engine Specific
Bore	4.155
CID	420
Comp Height	1.062
Comp Ratio @ 58cc	14.3:1
Comp Ratio @ 64cc	13.2:1
Comp Ratio @ 76cc	11.4:1
Dome Volume	3
Gram Weight	457
Oversize	0.03
Rod	6
Stroke	3.875