Speedmaster Small block porting tips and results Part 1
You guys nailed it. Like I said airspeed can kill a port and a good ear will hear it before we see it. That dog gone air will shoot the shortside and crash the back of the bowl. This re-enforces that for the average guy buying a set of Speedmaster heads and you want
15-20 horsepower a simple buff and shine to remove bad casting spots and a valve job and you are good to go. I know what needs done and how to do it but I can’t begin to tell you how to do it. Widening the shortside and shaping it is the hardest part of head porting. But it pays big dividends once you learn how. Again I can’t drawl at all but here are the .500 lift and .600 lift shortside speeds. Remember my bench maxes out at 401 FPS. The bottom numbers are going into the turn the top number is a short distance into the turn.