434" sbc if I go to afr 245 heads & less comp will

Old 02-04-2011, 04:31 PM
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bowler
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Default 434" sbc if I go to afr 245 heads & less comp will

i have a 434" SBC with 14.8 to 1 and AFR 227 ported heads (58cc) car & driver 2420#, if i go to AFR 245cc heads (70cc) and .039 head gasket i will be at 13.3 to 1, my car ran [email protected] on a 4ths. pro tree deep staging, what i would like to know will i lose et? thanks for you help Doug
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Old 02-04-2011, 05:39 PM
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fast75vega
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nope cause them 245's flow more then your ported heads... so i think even with less comp that you should run a little quicker
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Old 02-04-2011, 05:57 PM
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bowler
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that is exactly what i wanted to hear, i was told the 235's would be 50 hp better then the 227's, if i bought the 245's i didn't want to slow down. thanks Doug
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Old 02-09-2011, 07:25 PM
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cncmotorsports
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Default Re: 434" sbc if I go to afr 245 heads & less comp w

Originally Posted by bowler
i have a 434" SBC with 14.8 to 1 and AFR 227 ported heads (58cc) car & driver 2420#, if i go to AFR 245cc heads (70cc) and .039 head gasket i will be at 13.3 to 1, my car ran [email protected] on a 4ths. pro tree deep staging, what i would like to know will i lose et? thanks for you help Doug
Make sure your using the spread port exhaust.
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Old 02-10-2011, 08:19 PM
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bowler
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Default afr 245 heads

yes I have spread port heads with Jesel shaft rockers, I called AFR and they are not ready yet (next month) I might be able to use my rockers but would have to buy offset intake rockers, if it is not to expensive I would like to use them. just did not want to slow down. thanks for your info Doug
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