Quote Originally Posted by Grumpys Hot Rod View Post
I wonder if my machine shop would be up for that of modification. I will check that out. After market aluminum are a good option ?
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i can not see why i do them all the time . aluminum heads could be you have to watch the port CC runner size as most heads are base off a 454 or hi rpm smaller engine .put to big of a head on the 396/402 you will have a pig