351W Typhoon Intake?
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Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
Okay, that's what I thought. Those heads have 60.4cc chambers and 1.84 intake/1.54 exhaust valves. They're an okay head, but to really make 'em work you need to sink some money into them. I would have them mildly ported by someone who knows how to port Ford heads, open up the bowls and install oversize valves, say 1.94/1.60 Chevy valves and hardened valve seats. 3-angle valve job, bronze guides (if they need any guide work...after all these years, they probably do) and those heads will require the machining I mentioned before. The Crane conversions won't work on them, they're for late-model heads.
They have pressed-in studs rather than screw-in, so the studs need to be pulled out and the stud bosses milled, then guideplates and screw-in studs installed. By the time you're done with all that you could have bought some GT-40 cast iron heads that would out-perform them, for less money. I think your best bet is to look for used heads with the work already done on Ebay or someplace. Check our own classifieds, I got a set of GT-40p heads from another user here. There are good deals to be found.
Sorry I don't have anything more encouraging to say, it's just that good head work doesn't come cheap. It takes some money to make stock heads really perform.
On Edit: Here's a set with a lot of what I just described already done. The only problem is that they're the later low compression heads with larger combustion chambers, you'd probably want to use pistons with a mild dome with these: Ebay item #8014382634
They have pressed-in studs rather than screw-in, so the studs need to be pulled out and the stud bosses milled, then guideplates and screw-in studs installed. By the time you're done with all that you could have bought some GT-40 cast iron heads that would out-perform them, for less money. I think your best bet is to look for used heads with the work already done on Ebay or someplace. Check our own classifieds, I got a set of GT-40p heads from another user here. There are good deals to be found.
Sorry I don't have anything more encouraging to say, it's just that good head work doesn't come cheap. It takes some money to make stock heads really perform.
On Edit: Here's a set with a lot of what I just described already done. The only problem is that they're the later low compression heads with larger combustion chambers, you'd probably want to use pistons with a mild dome with these: Ebay item #8014382634
Last edited by TigerDan; Nov 14, 2005 at 10:45 PM.
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
I don't think I'd want to go much higher than $250-300. What I do is wait till the auction's about to end, and if it's still within my price range I stick my max bid in there at the last minute. I've bid on things too early and had the price shoot up out of range way too soon. Some people get so obsessed with winning the bid that they go way above what the item is worth. For me, if I can't get it at a deal I don't want it. Another will come along.
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