Material Aluminum A356.2 T6

Combustion Chamber Volume  63cc

Intake Runner Volume  235cc

Intake Port Size  H x W3.23*1.1

Inatke Port Height compared to OE Standard

Exhaust Runner Volume 93.6cc

Exhaust Port Size H x W 1.41*1.71

Exhaust Port Height compared to OE Standard

Intake Valve Size 2.020"

Exhaust Valve Size 1.600"

Valve Stem Diameter  8.00mm

Valve Length 4.88

Valve Angle 15 Degree

Valve Guide Seal Diameter 0.5"

Valve Guide Material Manganese Bronze

Valve Spring Base Diameter 1.358"

Deck Thicknesss  5/8