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rare casting#492 SBC double hump heads

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Old 03-22-2010, 11:20 AM   #1
dcmock
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Default rare casting#492 SBC double hump heads

I have a set of double hump 2.02 1.60 angle plug heads. The heads just got completely redone , 3 angle valve job, magnafluxed, milled , ported and are ready to install. These are pretty rare heads and were only available from GM performance over the counter. These have the accessory holes drill, comp springs, guide plates, studes, self aligning rockers. I want to sell these for 600.00 or trade for some 64cc aluminum heads or vortec heads. The only reason I am selling is cause my motor has to much compression to run pump gas 417 846 5058 or dcmock@centurytel.net

Last edited by dcmock; 03-22-2010 at 07:35 PM.
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Old 03-22-2010, 11:29 AM   #2
larrywalk
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How far were they milled, or what is the current combustion chamber volume?

Originally, these heads were stock with ~64cc.
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Old 03-22-2010, 12:40 PM   #3
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Bought a set from GM in the 70's, paid about a grand back then! You had to buy them bare and load them up. Best heads I ever had, and....changing the plugs with full headers was a breeze with those angled plugs. No problems with ign. wires too close to the heat. $600 is very fair IMHO.
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Old 03-22-2010, 12:49 PM   #4
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Quote:
Originally Posted by kerrmudgeon View Post
Bought a set from GM in the 70's, paid about a grand back then! You had to buy them bare and load them up. Best heads I ever had, and....changing the plugs with full headers was a breeze with those angled plugs. No problems with ign. wires too close to the heat. $600 is very fair IMHO.
very nice set of heads. But the milling will kill them for most or a lot. Would really help the 300 hp guys. Bump
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