ETP 215 or AFR 225 CNC heads... which makes more power???
06-27-2009, 10:05 AM
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ETP 215 or AFR 225 CNC heads... which makes more power??? I am building a stock cube ls1 for a 6 speed GTO.
Just wondering if anyone has done any back to back testing between the two heads with a larger cam like an MS4 or similar??
This will be for a street/strip car.
From what I see, the AFR CNC heads out of the box seems to make more power with higher flow.
Should I sell my AFR 225's and go with the PRC 215's??
Watcha think between the two???
Just wondering if anyone has done any back to back testing between the two heads with a larger cam like an MS4 or similar??
This will be for a street/strip car.
From what I see, the AFR CNC heads out of the box seems to make more power with higher flow.
Should I sell my AFR 225's and go with the PRC 215's??
Watcha think between the two???
Last edited by nitrorocket; 06-27-2009 at 08:13 PM.
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06-29-2009, 11:05 AM
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06-29-2009, 11:19 AM
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The OP's original question is a moot point. Those two heads like very different camshafts for best results. I've used them both extensively along with (more recently) the TEA/TFS heads. You are comparing 15*, 11* and 13.5* heads. One advantage the AFR has is the ability to bolt on a go with very little fuss. The other two require signifigant knowlege to properly install and setup valve train geometry. Any of these three heads could be used to create a stout H/C combo. Its just a matter of picking the right pieces to work well together. Also, since you already own a set of AFR 225's, You have a great building block to work off of. I have a customer with a set on a 402 pushing deep 9's and about to drop into the 8's with a set of those on a 402, but still there is plenty of potential there.
Shane
Shane
