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Intake runner volume 241cc Combustion chamber volume 51cc Intake valve angle 7.5 deg. Intake Valve 2.150 dia. x 5.340 length Serdi # HP2849-B1* (50 deg. seat) Exhaust valve angle 8 deg. Exhaust Valve 1.585 dia. x 5.240 length Serdi # HP2684-B1* (55 deg. seat) Intake port opening at gasket 2.1H x 1.52W Distance from floor to deck at gasket 1.41 Intake min. cross sectional dim. 2.91 sq. in. * 45 deg. seat also available on valve job. Deck
flat milled .100"
Pushrods are clearanced for the most commonly used rocker systems.
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