That's how it appears. It costs nothing to find out for sure. Lemmie say that again. NOTHING to find out. lol I "thought" my slant 6 head was setting up right. I got hold of Mike and he showed me how to measure and tell. Mine was way off. Mostly because I used longer 318 valves, BUT, most of them are off. Edelbrock casts those heads based off where the stock heads have the rocker stands, so it's always best to check. It's not like it's a ton of money to fix it. I think it's only like a couple hundred bucks for the custom shims if it needs them. Better to be safe than sorry. Just my opinion.