I bought a pair of trick flow heads back in 05, while I was deployed, and in Germany.
These last few weeks, I have been getting my poop all in one sock, so that I can finish the build of my 69 Cougar.
The pair of heads that I bought had one bad valve in one of the heads, from the factory.
The only reason I know this, is that the guy who did the rest of the machine work on my block told me about the problem.
Today, I tried to bolt these same heads onto my block, using head studs, instead of the stock head bolts, and I found that they didn't fit.
It seems that the pair of heads I bought also have about a 1/32nd of material that prevents them from fitting on the half inch head bolts that come stock on a W.
Did I get a bad pair, or is this pretty common? I know that they sell a 'bushing' to fit all heads on both the 289/302 and 351W block. It seems to me that the heads should have slid straight onto the head studs with no interference. As it is, I will have to either spend some time with a round file, or take them back to teh machine shop for a quick hole enlargement.
is this a common problem for new, aluminum heads? I mean they are 5 years old, but still straight out of the box....What do you think?