tilly

iTrader: (5)

Hello,

Well I have been doing a little reading on cylinder heads and wander if any one has done back to back comparison between the heads I stated above.

Thanks for the input.
Tilly

BLACK2001SS

Bang for the buck the patriot heads (ls6 stage2or 3 depending on cam ect.) look verry good on paper flow wise thats why I got them havent had a chance to take it too the track yet.

RZRSEDGE

iTrader: (21)

AFRs are a very proven setup given the funds.

FRUSTRATED T/A

iTrader: (13)

Im thinking i might have a closer look at katech for the next motor.

RAGENZ28

iTrader: (5)

I'd compare the airflow graphs for each head, record the numbers and see what ones average the most. Peak flow isn't the most important thing low and mid lift numbers are also important.

tilly

iTrader: (5)

Well lets just say there is no budget. What head would produce the most power with the cam, displacement and combustion chamber size are all the same.

Well that is not exactly fair testment. AFR are a good example of it. A larger volume intake runner is going to flow more air because the opening is bigger and thus the bigger intake running is going to flow more. And a large intake runner on a 346 does not always produce the most power.

Cantalope Kid

iTrader: (2)

AFR 205 in this poll...personally I say sell the LS1...go LS2 or better shortblock...get the L92 heads and tell over priced heads to blow me.
.

SOMbitch

iTrader: (8)

Not listed but trick flows perform great and they now have an as cast version. I emailed them and their flow numbers are very close to ported AFR's. They can be had for around $1800 but you have to run aftermarket roller rockers with them which puts the cost back in AFR territory. You would have better rockers though. Just a thought.

HEMIETR

iTrader: (2)

GM High Tech Performance had a head shootout in an issue quite some time ago. Trick Flows won the shootout. There was some speculation that the TFS were "massaged" for the test. Try and look up the article on their website.