Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

which heads?

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Old Mar 19, 2013 | 06:19 PM
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Thumbs up which heads?

this is a 434 ci engine, i'm about to get heads, which runners should i go for, drag purpose all way around, looking for 13.0:1 rc, thanks in advance.
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Old Mar 20, 2013 | 02:47 AM
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Think i remember there being some 245cc intake runner heads for a SBC back when i was into them. Those would work, but i cannot remember who makes them. Will feed 434 cubes to 7000 RPM.
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Old Mar 25, 2013 | 02:29 PM
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Originally Posted by ZONES89RS
Think i remember there being some 245cc intake runner heads for a SBC back when i was into them. Those would work, but i cannot remember who makes them. Will feed 434 cubes to 7000 RPM.
do you think heads with some bigger runners like 265cc would make engine to lose a little power?
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Old Mar 25, 2013 | 05:26 PM
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show me a conventional 265cc SBC cylinder head
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Old Mar 25, 2013 | 08:04 PM
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with high compression you need a big cam and high flowing heads to take advantage of the compression.call all the companies that make heads and ask them what would work best with your combo.get the cam last.what gears,stall ,and whats the weight of the car ?
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Old Mar 28, 2013 | 06:13 PM
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Originally Posted by v8sten
show me a conventional 265cc SBC cylinder head
Dr. J's has a 265 23degree head, Chad Spier, and AllPro would be good places to look. I think AFR has a 245 cc head as do Dart and Brodix
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