Have you guys seen the ones on ebay? Are they the real deal? The auction is over, so search that way.
The correct casting # for 71-455 But you can only tell stage 1 by the valve size. Yes, they look to be stage 1, but all you have to do is get 71 heads, take them to the machine shop and have stage 1 valves installed (that is what Buick did too). :bglasses:
