Products specifications

Block Height	9
Fitment	Engine Specific
Bore	4.155
CID	407
Comp Height	1.125
Comp Ratio @ 58cc	9.7:1
Comp Ratio @ 64cc	9.2:1
Comp Ratio @ 76cc	8.6:1
Dome Volume	-28
Gram Weight	476
Oversize	0.03
Rod	6
Stroke	3.75