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Old 03-19-2011, 04:46 PM
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SBC Head recommendation

I am looking to replace the stock heads on my 65 Corvette 327, L-79. It is a fresh stock rebuild except for .030 over and flat top pistons. I am running the stock Holley carb (600 scfm) It is about 9.8:1 compression. Can anyone give me a good recommendation? Most are 64cc combustion chambers with 185 runners. I am thinking this might be a little big. I am looking to wake the motor up and have a stock look. Any suggestions are appreciated.
Thanks,
Larry

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Old 03-19-2011, 05:01 PM
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I recommend RHS Vortec heads. 1.94 1.50 valves, 170cc runners,
64cc heart shape fast burn chambers. You will have to get a Intake for Vortec heads as well. These heads will really wake up your 327.
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Old 03-19-2011, 05:20 PM
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what Doublevision said.

Although, I think those heads will accept both traditional intakes and vortec intakes.
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Old 03-19-2011, 05:20 PM
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Vortecs plus the valve covers in the pics below would look pretty good and still have a old style look as well. JMO


Cole
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Old 03-19-2011, 05:28 PM
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Thanks for the info. I would really like to keep my stock intake. The stock look is what I am after.
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Old 03-19-2011, 05:33 PM
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You may pick up more driving power with an upgraded cam, headers, and intake all of them together would be less than new heads.

Where your heads rebuilt when you rebuilt your engine?

If you do get new heads I'd look for a modern style chamber (vortec or better) about a 190cc runner and about a 60cc chamber volume. That's assuming the rest of your engine has been built properly and you have a decent cam, headers, and intake.
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Old 03-19-2011, 05:42 PM
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What is it about a Vortec manifold that you think won't look stock? An Edelbrock Vortec RPM is going to look like any high rise manifold, the difference is where the manifold meets the heads which can't be seen. Paint it aluminum and who will notice?
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Old 03-19-2011, 06:27 PM
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My heads were also rebuilt when I did the motor. My plan was to add a nice set of aluminum heads and paint them orange. If I change the manifold will I have to change the carb? I know I can get an Edelbrock top end kit and get more HP. As I said, I wanted to keep it looking like a stock L-79
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Old 03-19-2011, 08:41 PM
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No reason to change the carb. I do believe if you switch to better heads you'll want or need a bigger carb to take advantage of the heads. Most people can't tell what size a carb is by looking at it. And it's under the air cleaner most of the time. Anybody that knows early small blocks would be able to tell modern aluminum heads painted from camel hump fuelie heads. You're gonna have to decide what you want in terms of performance and what people will see the few times the hood is open.
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