Porting Mopar 318 smog heads.
Cutting my mold up in smallest cross section, finding my high speed area in my heads, valve curtain is calculated with XE 262 H lift. Can also see how the port is twisting into chamber for swirl.
Intake gasket : 14.08 cm2
Pushrod pinch : 11.02 cm2
Cross section : 9.05 cm2
Valve throat : 12.12 cm2
Valve curtain : 16.61 cm2
My high speed area is between pushrod pinch and small cross section, out to venturi in bolw under valve.
Cutting my mold up in smallest cross section, finding my high speed area in my heads, valve curtain is calculated with XE 262 H lift. Can also see how the port is twisting into chamber for swirl.
Intake gasket : 14.08 cm2
Pushrod pinch : 11.02 cm2
Cross section : 9.05 cm2
Valve throat : 12.12 cm2
Valve curtain : 16.61 cm2
My high speed area is between pushrod pinch and small cross section, out to venturi in bolw under valve.