Quote:
Originally Posted by Jesse Knapp
Barry. Who makes the aluminum replacement heads? Is it Edelbrock? I really want to do an iron head engine. Heads are the key for me. Until I find good heads I won't buy the rest of the top end. Shortblock is not a problem. Thanks for the reply. Jesse
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Jesse, the GM Performance Parts head is the "401" head, yes, they are cast by Edelbrock. The intake is actually the Edelbrock 7163 intake, GM Performance Parts sells it as the "359". The 427-425 doesn't SEEM to gain as much with the aluminum heads, but if you can't find a good set of iron heads to start with, they are a decent alternative, and you'll pay less for a set of "401" castings than you will for iron heads. The going price for iron castings is over $1800, when you can find an unmolested set. At least now you can put a full set of seats in a set if you find some with the seats shot. The problem is that 80% of them are "ported"
and have had big valves put in. If they've had the big valves put in correctly, seats won't fix them because the bowl is cut to match the bigger valve.