Quote: So what are the key differences in the head and engine that make them unable to be used correctly for drag racing? Also, what work is involved to change the engine over to a roller? With the ability to use epoxy, I would think you be able to get the port shape back to whatever you wanted. Also, one would be replacing most of the valvetrain anyway. Also, since there is less meat on the intake port side, has anyone thought of welding the top of the intake ports a certain amount, then re-machining spring seats and rocker stands, you would just longer pushrods after that correct? I figure you could get a .25 to .375 more height in the port.
I really don't get where this misconception that a P7 headed engine won't make a good drag engine, I can only put it down to the fact that the people making these statements know nothing about what goes into a Comp eliminator style engine. There are plenty of SB2.2 and Chevy Splayed valve engines making big power, the P7 deal would be no different. Leon made some very good points also.
