Basically all Pontiac heads are the same. If you want a good heads, Iron heads you buy any 2 bbl head & put the work you would have in them. The 2 bbl heads usually haven't been beat up as much & once you put the bigger valves in them & port them they will good heads for just about any engine. It all depends how much work you put into them. Get good port work & good big valve with new guides springs & rockers & you can have a good set of iron heads fro a reasonable amount.
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