The Chevy 4.3L V6 as well all know is basically 75% of a Chevy 350 so it only makes sense that there would be a market for speed parts for these engines but we never knew the extent that Chevy went with them as evidenced by this wild set of canted valve cylinder heads designed for the mill. Designed to be used in all-out racing applications, these heads (according to the seller and what we have been able to dig up) are exceedingly rare and can move enough air to support up to and maybe over 700hp in engines that can turn 10,000 or more RPM. Can you say NHRA comp eliminator?
We found plenty of examples of 90-degree V6 aluminum heads for sale on eBay but no others that carried this specific part number and no others that had canted valves like this. Every other set of heads we saw had the traditional inline valve layout that you are used to seeing in a small block Chevy style engine. The ports in these babies are huge. We have no measurements nor could we find any but their shape and the eyeball impression we get is that they can really move for air when given the chance with lots of cam and lots of revs.
Were these heads used outside of drag racing? Were they used in stock car racing at any time? Busch cars had V6 Buicks for a while, right? Did they ever run Chevrolets? Anyone have any experience with these bad boys? Spill the beans!
CHECK OUT THESE HEADS AND THEN HIT THE EBAY LINK AT THE BOTTOM –