Basically, with a few improvements/changes. The casting was originally the Pro Topline. Same foundry is casting them in New Zealand. "Masport" foundry.

Chem milled Ti?

I do like Edelbrocks concept.. anodized heads with stainless intake and inconel exhaust. You ad the spring you need,, sort of half way between bare and built....

I just dont know how good they are.. I have seen posts saying they are slightly better than GM and I have seen posts that say they rock.

As far as steel heads go, they were pretty good back then. The rolled valve angle is a big deal.

At the end of the day, I'm gonna weigh all the pro's and con's with my buddy I'm building these engines for and have him decide.

I'd almost wish he'd ditch the MPI for a carb cause I can make an easy 600/650hp with a few known combos but I got what we got here.

Female ? for 98% of us anyway.

It was a lot that went in to that bill lol . To start I broke a lifter twisted a prop shaft so all new lifters for both full top ends new cam full taredown and check on one and full tune up all around new everything. It was one summer of use after getting the new toy and running the snot out of it lol

The only thing that was nice about having a shop do everything was you drop of the boat broke befor winter and pic it up in the spring running like new. If it wasn't to big for my heated garage it would be a different story.

I chose 308 iron eagles when I had to replace my heads for a reason not yet given.

My boat is a straight vee with a high x......about the last place I wanted to remove weight was from the ass end.

Yes, most big straight vee bottoms love bow lift. Ever notice how much tongue weight there is when you pull the engines out of the hull?

I see that someone is captain of their ship.

I put my Edelbrock flow numbers up in post #126 just as info for anyone wondering.

I ordered 2 sets of the eq320 heads posted above from competition products. They will customize the parts to anything you want. I changed to iconel exhaust valves and different springs. They seem to come with better parts than most off the shelf heads, arp studs, manley extreme duty valves etc. I guess I'll see how the heads look when they show up.