Physical Specifications Custom Brodix-12P Castings Intake runner volume     247cc or 262cc Combustion chamber volume     60cc 15 deg. Valve angle 40/60 Valve spacing Intake Valve     2.125 dia. x 5.440 length    Serdi #     2TN Exhaust Valve     1.600 dia. x 5.440 length    Serdi #'s     1st cut: H1X1  2nd cut: H1X2 Raised intake runners 10 deg. Intake flange Spread port exhaust Notations .450 Offset rocker shafts required .180 Offset lifters required Intake gasket     FP 1263 Exhaust gasket     FP 52464 Manifold     MS89 Angle milling     .0065 in. per cc Flat milling     .0055 in. per cc The 262 is the SAME head as the 247 with a larger intake runner. 247 Intake runner volume     247cc Intake port opening at gasket     2.2H x 1.33W Distance from floor to deck at gasket     1.175 Intake min. cross sectional dim.     2.512 sq. in. 262 Intake runner volume     262cc Intake port opening at gasket     2.23H x 1.37W Distance from floor to deck at gasket     1.17 Intake min. cross sectional dim.     2.775 sq. in.     Click for larger version of graph

 

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WELD TECH 1789 South Green Street Brownsburg, IN 46112 (317) 852-4450 Fax: (317) 852-5291