Worth anything ?
Posting Guru
Joined: Nov 2008
Posts: 1,937
Likes: 2
From: wyoming
couple hundred to the right guy?
They need work to make work for most application. the small combustion chamber is the prefered over open chamber and these are positive stop rockers. The one advantage is the open chamber tend to outflow a closed chamber because of valve shrouding. but thats about it. MPG heads sell a intake/exhaust port plate drop in from scott for these heads. Scary simple!! Definelty a learing curve if you learn what it takes make work and you will understands heads better than the average joe instead of just buying a set that just works. I want to know what makes things work instead of just accepting. maybe I'm wrong but try to get the most out of what I have at hand.
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Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
I'm not sure, they may have redesigned the material thickness around the valve bowl & made it thinner ? It's a shame, they have a nice port and polish job on them and a new seat job. The chambers are polished up pretty nice too & the guides are good. They would need milled just a little cause of a few slips with a die grinder, nothing bad but it's noticeable. A .010" cut would clean them up nice.
Posting Guru
Joined: Nov 2008
Posts: 1,937
Likes: 2
From: wyoming
mpgheads port plates cleveland.
I'm not sure, they may have redesigned the material thickness around the valve bowl & made it thinner ? It's a shame, they have a nice port and polish job on them and a new seat job. The chambers are polished up pretty nice too & the guides are good. They would need milled just a little cause of a few slips with a die grinder, nothing bad but it's noticeable. A .010" cut would clean them up nice.
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Lead Driver
Joined: Mar 2004
Posts: 8,924
Likes: 153
No, I'm not interested in these heads. I want rid of them. They have been around here for far too long and if no one wants them then I'm afraid I'm going to scrap them.
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Posting Guru
Joined: Dec 2002
Posts: 2,003
Likes: 2
From: chicago burbs
it's been suggested that those are the best to start with for SuperStock or other racing because of the meat available in the valve bowls that large valve heads don't have. while machining for 4V valves, a talented porter can use that extra material to create swirl as the A/F mixture fills the cylinder, making more power than factory large valve heads. while i'm not yet offering to pay shipping, i wouldn't toss them for no other reason either...
heads that flow the most CFM are not the ones that make the best power
heads that flow the most CFM are not the ones that make the best power
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