posz28

iTrader: (1)

Im looking at getting either patriot or afr heads. I know that patriot heads are a lot less than afr heads price wise. Now what is the difference in HP?!?

SkylarkLS1

iTrader: (1)

http://www.airflowresearch.com/store/ls1_dyno.php
http://www.ask.com/bar?q=patriot+ls1...gtomclutch.htm

PREDATOR-Z

It is like comparing a donkey to a horse. AFRs are pure thoroughbreds. It is not only a matter of power, but efficiency, throttle response, torque, and quality. AFR 205s are one of the best aftermarket grinds to date for street use.

What are your goals and list of mods, cam etc...

9secondsflat

my .02 just get the tfs 215's from ron at vengeance...have them milled to put you in the mid 11-1 c/r and call it a day...power from 2k-7k.

BLOWNBLUEZ06

iTrader: (17)

Bang for the buck i.e. $ per horsepower, Patriot is hard to beat, but when you've done everything else and you're looking for that last 20 horsepower, you might wish you had spent the extra money. You could always try buying a clean set of used Patriots and try them out. If you don't get where you want with them, you can sell them for a small loss if any and step up to the TFS or AFR's

STEEPSS

iTrader: (30)

i'm kinda in the same boat. i want some heads, but i'm not sure that the TFS, or AFR's are worth the extra 1000 to 1500 bucks.

smok'nZ

iTrader: (160)

Havent heard much about the prc 215's if they are close to the cost of patriots id go with them

bjamick

iTrader: (31)

Best budget head is Patriot and PRC. They produce amazing flow and actually outflow the afr in most spots .

Patriot =
https://www.patriot-performance.com/...&cat=37&page=1

AFR =
http://www.airflowresearch.com/store...e637695bdff47f

posz28

iTrader: (1)

Im getting a car that has MTI cam X1 I beleive and it has MTI heads on it...I think P&P stock...also has kooks headers, borla catback...im going to add the vic jr manifold, slp udp, meziere electric water pump, basically all bolt ons...some suspension also

redtail2426

iTrader: (10)

although some of the other heads may outflow the afr's,they dont have the cross section or port volume as small as the afr's.The end result -the afr's will always make more power over the patriot/prc.Not only that but throttle response and midrange torque from the afr's is better.like the other guys have said,if the extra 15-20hp is worth the extra money,is up to you

posz28

iTrader: (1)

Thanks for the input guys.

Chrome355z

iTrader: (1)

Have them flowed by an independant bench, and report the results. And just because you hog a casting out so it can move some air doesn't mean it will make good power.

No comparison between the two. AFRs will make more power across the board, better throttle response, better efficiency (less spark advance needed), etc...

Although, I also like the ETP215 heads.

bigboykilroy

iTrader: (48)

my vote is for the TEA ls6 stage 2 heads

TVWilkes

The PRC215 is an aftermarket casting. The cost is nowhere near the Patriot's. The PRC215 is competition to the AFR, TFS heads; it's not a budget head. PRC does offer lower cost ported stock GM castings. IMO, PRC will offer the best quality and power per dollar. No matter what your budget, high or low, PRC has a product that will work best for you.

STEEPSS

iTrader: (30)

JW, but what's your reason behind that? Won't the 5.3 stage 2.5 heads flow somewhere close, and maintain better torque down low due to the shorter runners?

posz28

iTrader: (1)

Lets say i dont want to spend more than a grand on a set of heads.

NemeSS

iTrader: (127)

l92 it is then.
or some basic ported ls6

Beau@SDPC

iTrader: (14)

GTP241S1 Stock ported 241s come with stainless valves and LS6 springs.
http://www.sdparts.com/product/GTP24...nderHeads.aspx

in texas as well, but the only extra for you is tax, still free shipping

TXZ28LS1

iTrader: (5)

im also in the same boat. ill looking at doing heads here shortly. i know the AFR are one of the best if not the best. but ive seen some great #'s lately with those patriot heads. i think speed inc did a H/C car with patriots that put down 45x range i think... i mean its tough to beat 1200 bucks shipped assembled with double valve springs.

FCar2000TA

iTrader: (7)

If Patriot ever gets the Predator heads done, those should be really close to AFRs, and still be like $500 less