Quote Originally Posted by 1JohnnyO
Post the casting numbers on the heads....they might be fine to use with a little work. The peanut ports were not used on all truck engines. Might as well save money where you can. A roller cam will make lots more power...not so much with the roller rockers. And no offense meant to Eric, but you do NOT have to adjust a solid lifter cam very often. Once they take a set, if you do it once a year, that's a lot. I do mine every spring when I take the car out for the season, and it really doesnt need any adjustment...I just do it because I want to make sure.
There is no way a stock head will supply enough air to an engine like this work.If he has a set of re-worked cast iron GM rec. ports it might work.It really depends on the cam.On a lower lift mech. you might get away with this once a year but if you have a roller cam with extreme spring pressure you will have to "run the valves" often.
Secondly why would you shove a roller cam in a block and "choke it down" with stock style heads?