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Old 10-23-2022, 08:30 AM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
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Some 70 455 #15s would be a decent start also. Or use the 6X with some mini pop up pistons.

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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Old 10-24-2022, 06:44 PM
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geeteeohguy geeteeohguy is offline
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Originally Posted by Skip Fix View Post
Some 70 455 #15s would be a decent start also. Or use the 6X with some mini pop up pistons.
I used a set of these heads on my '67 GTO with flat top forged pistons .030 over. Ended up with about 9.3 CR. The heads cc'd at 87 and I upgraded to screw in studs. I can now run 91 octane fuel and it runs fine with an 068 cam and stock intake and exhaust. Been on the engine about 12 years or so and a lot of miles.

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