Originally Posted by TVT_DESIGN
The heads are identical so the SRT will flow as much as the NA head. Nothing different except for valve springs. The heads we did were for a NA application and thus we bumped the CR a tad and only increased flow to what was needed. On the SRT we would further improve intake flow and drastically enlarge the exhaust side to balance out the pumping.
For the NA the intake port has not been fully enlarged for gasket matching, but it is port matched to our ported intake. Going larger has resulted in reduced velocity and loss of power on the 3.2L NA.
I know its a 3valve motor so i gues its 2 intake one exhaust? Any sort of price estimate on Blown 32 heads with larger exhaust valves? Are you sending these out or done in shop?