Re: Good Head
 

JP,
From what I was told the hard anodizing must take place BEFORE te hardened valve seats are put in. The process cannot be done in the presence of dissimilar metals :(

Re: Good Head
 

JP,
From what I was told the hard anodizing must take place BEFORE the hardened valve seats are put in. The process cannot be done in the presence of dissimilar metals :(

Re: Good Head
 

Well they made it a week sooner than expected :)

Re: Good Head
 

The hard anodizing left them almost black. When I first saw one I thought it was steel not aluminum :eek:

Re: Good Head
 

Back end of the old 'Bird should sit and inch higher now :D

Re: Good Head
 

Yep ... after swapping the iron for aluminum last winter (heads , intakes , exhaust ) the boat is 300 lbs lighter. The water line is about 2 inches less @ the swim platform now.

Bob

Re: Good Head
 

Already have he intakes and exhaust , that's why I figured 1" :)

Re: Good Head
 

Mo, what heads gaskets are you using. . .what Generation blocks?

Chris

Re: Good Head
 

Merlin generation blocks :D. I haven't given head gaskets much thought yet. I am going to head studs rather than bolts. Also want to match the size of the ports to the flow requirements of the blocks. My current Merlin heads are too big and as a result my port velocity is down. :(

Re: Good Head
 

470 Merc was based on parts from the 460 Ford. It was basically "half" of a 460 V8. Custom crank, but used 460 head, rods, bearings, pistons.

I saw one in an old Starcraft that had raw cooling. Not closed.

Anodizing will give you a barrier between the salt and the metal, but you must still treat it as a delicate situation and flush religiously. And any scrape or scratch in the coating will leave that spot bare and vulnerable.