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Whats the current best head on the market?

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Old 03-10-2009, 09:43 AM
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Thr fastest stock bottom end car in the country uses PRC 215s. These heads also have better ptv than the other heads mentioned and are cheaper.
Old 03-10-2009, 11:17 AM
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I always thought the Trick flow 215's had the advantage with ptv clearence because of there 1.5 degree change in port angle (15 to 13.5 i think). Ive always herd the TFS 215's are the way to go. They do however require a new rocker setup. Im sure if you get a pair milled and worked over theyll make insane power.
Old 03-10-2009, 11:33 AM
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Originally Posted by evangto87
285 cfms at 600 lift without use of a pipe. Off the shelf heads use a pipe. Pipe is worth a solid 25 to 30 cfms
my prc 5.3's flow 312 at .600.......
Old 03-10-2009, 12:11 PM
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There are going to be many answers here, there are a few good proven performers but the most important thing is the whole setup.

Weight and gearing and traction play a big part of it at the drag strip but in full weight street cars results are going to be different. It's not just about flow numbers of a head on a bench. There is much more to it than that.
Old 03-10-2009, 09:01 PM
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When I was looking it was between afr and etp. I got a nice deal on a set of etp's so that's what I'm running. I had a set of 243's done by GTP years ago that outflowed alot of big $$$ heads.
Old 03-11-2009, 09:34 AM
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Originally Posted by nitrorocket
I need to pickup some heads fora big power stock bore pumpgas N/A project. Who ports the most efficient heads right now? I need to buy a set...
What cubic inch motor are you building? How much power are you looking to make? Give more details and I will be more than happy to help.
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Old 03-11-2009, 10:17 AM
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It is for a stock bore ls1. Stock bottom end.

Basically need heads, cam, has headers and ls6 intake and needs big power on 93 octane fuel...
Old 03-11-2009, 12:44 PM
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Originally Posted by nitrorocket
It is for a stock bore ls1. Stock bottom end.

Basically need heads, cam, has headers and ls6 intake and needs big power on 93 octane fuel...
Well with our 215 head and our stage 4 cam using what you already have will produce around 530 HP and 470 ft lbs of torque at the crank.
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