Quote:
Originally Posted by Tomaso
Might be a silly question. But the long tube headers that are available for the 66 Bonneville 389 and 421. Fit on a 400 or 455 block if I switched over?
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On the street, you’ll be much happier with reproduction long branch cast iron manifolds from RARE. You’ll give up a little top end power but you’ll lose all the headaches of headers. It’s amazing how efficient Pontiac designed those manifold to be, and they are comparably priced to quality headers($569 a set).