Quote:
Originally Posted by SSC's76
Newer Vortec BBC heads have a smaller chamber and bolt right up to a older BBC intake just need to swap the valve train to adjustable rockers. Nice of GM just to drill a few extra holes to allow one to use a carb intake or a TBI intake and a vortec intake all on the same set of heads with no mods.
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The vortec 454 heads will work on an early block?