Big Block Cylinder Heads "915 vs 906"

txstang84 said

True story...even if you're buying the $1000 Stealth heads, it's been made pretty clear on these forums, bolting on a set of new aluminum heads without cleaning up the bowls and seats, a quick surface cut to ensure straight decks, plus checking installed heights on the springs is borderline negligent. Those processes, where I was at before, would be worth about another $350 for a complete set of V8 heads.

Click to expand...

Yes, and sometimes they require more than that. Even the best aluminum heads need to be checked out and will likely need something. In stark contrast, I can go find a clean pair of heads in a salvage yard, take them home, clean them myself, check them for cracks myself and if I really luck out the guides and seats are still good. I can do a basic valve job myself pick some springs out and run them. People talk about how crappy the factory did stuff, but that seems to be hard to duplicate in the aftermarket, doesn't it?