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Old Sep 28, 2006 | 03:54 PM
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Default Which heads

TSP PRC LS6 heads or AFR 225 heads on a 346ci motor, which would be the better choice?? Does anyone have any flow numbers for the AFR 225s??
Which heads would be better for a 150 shot and NA??
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Old Sep 28, 2006 | 03:56 PM
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AFR 205s. Not 225s.
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Old Sep 28, 2006 | 04:02 PM
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Your talking Yugo's and Porche here. The TSP PRC LS6 heads only flow 287 CFM @ .500 lift and 307 @ .600 lift. The AFR's will blow those away. The PRC heads only cost $900 and the AFR's are about $2400. You might want to look at the Dart Pro LS1 heads (http://www.pm-fl.com/catalog/product...bdd6fa8498231). These are the heads I'm using on my H/C upgrade in a couple of weeks.
The AFR's are made for the juice with their 3/4" deck height.

AFR flow numbers

Last edited by SOMSS; Sep 28, 2006 at 04:13 PM.
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