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I'm getting ready to rebuild a big block 454 for my friends GMC 3500 I was wondering what kind a heads are recommended for that I kind of want to stay away from the peanut port heads. But at the same time I don't know much about the peanut port heads. I'd like to know the pros and cons. What size valves work with each other and what size intake will work good. So let me know thanks guys!!
Welcome aboard! Good to see you here..
What kind of use do you expect this motor to do? Racin'? Cruisin? combo of both?
what is wrong with the small port heads ? low rpm and heavy truck that.s what the heads was made for .do not be so fast on thinking there bad head you said you do not know much so who said there a bad head? some builds it may not be best head pick.hard to say you info is lacking to pick a better head for the jobQuote:
Originally Posted by Dudeman
the thing that does the most good for those vehicles/engines was to turn the air cleaner top upside down to let in more cool air----------IIRC crz rpm was 3000-3500 and 6 miles per gallon-----------