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Intake runner volume 286cc Combustion chamber volume 76cc 13.5 deg. Valve angle 85/125 Valve spacing Intake Valve 2.200 dia. x 6.090 length Serdi # SC 604 Exhaust Valve 1.580 dia. x 6.090 length Serdi #'s 1st cut: H1X1-A1 2nd cut: H1X2-A1 Raised intake runners 5 deg. Intake flange Spread port exhaust Intake port opening at gasket 2.2H x 1.465W Distance from floor to deck at gasket 1.96 Intake min. cross sectional dim. 2.7 sq. in. .650
Offset rocker shaft required
.180 Offset lifters required Water openings on intake flange: -10AN Exhaust gasket FP 1445 / Cometic C5422 Angle milling .0065 in. per cc Flat milling .0055 in. per cc
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