Products specifications

Block Height	9
Fitment	Engine Specific
Bore	4.13
CID	407
Comp Height	1.1
Comp Ratio @ 58cc	15.8:1
Comp Ratio @ 64cc	14.6:1
Comp Ratio @ 76cc	13.6:1
Dome Volume	3
Gram Weight	446
Oversize	0.005
Rod	6
Stroke	3.8