TF CNC 225's or PRC 227?
02-15-2010, 11:32 PM
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TF CNC 225's or PRC 227? Looking to get the most power out of this LS2 
. I am already running a VRX-5 cam, SLP LT, and a SLP UDP. Will also be adding a FAST 102, FAST 46# injectors and a Spintech exhaust. Now it is just a matter of which head? I want to reach that 500 RWHP.
. I am already running a VRX-5 cam, SLP LT, and a SLP UDP. Will also be adding a FAST 102, FAST 46# injectors and a Spintech exhaust. Now it is just a matter of which head? I want to reach that 500 RWHP. 
02-16-2010, 01:33 AM
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For the price those PRC 227's Look quite nice. I would like to see these heads with a side by side comparrison... Everyone on here knows both company's are great especially TFS.
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02-19-2010, 08:52 AM
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The advantage to the PRC 227 is it features a smaller chamber option for exactly this application. You can't mill the TFS enough & keep your p/v good to get compression where you need to be. The PRC 227 head will keep good p/v thanks to the little bit smaller valve, and it will start with a 62cc chamber so your compression is in good shape without milling! 
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
02-21-2010, 05:45 PM
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I have the TFS 225's with a 61cc Chamber, however I have a 4.125 bore and a small cam, on the Ls2 stock bore might be a problem with P/V as prev mentioned!!
They work great with my combo!!
They work great with my combo!!
02-21-2010, 07:18 PM
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Thunder has the TEA TF 225 for a really good price. Has dual springs all the goods you would need to get to your goal of 500rwhp. I have a mild size cam and a ported fast 92. With the size of cam you have, I have know doubts that you will reach what you want. When my car was tuned it put down 497rwhp before the smoothing factor and it was 90 degrees+ with TX humidity. These heads or ETP would do it but ETP is more cash. TEA 225 are around $2395.
