TELL ME!!! Stage 3 heads on a 402 do I go AFR, RHS, DART, Patriot???
04-08-2007, 09:11 PM
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TELL ME!!! Stage 3 heads on a 402 do I go AFR, RHS, DART, Patriot??? TELL ME!!! Stage 3 heads on a 402 do I go AFR, RHS, DART, Patriot??? 
I have some stage 2's now and want to make the move to bigger heads and any CAM offereings are welcome as well.
Not a dailey driver so help me THINK BIG...........
I have some stage 2's now and want to make the move to bigger heads and any CAM offereings are welcome as well.
Not a dailey driver so help me THINK BIG...........
04-08-2007, 09:30 PM
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Right now the TrickFlow 225s are king of the hill and making the most power on a 402 motor like yours. I would go with TRICKFLOWS no question, as they are in the same price league as the AFRs and clearly make more power! 
04-08-2007, 10:24 PM
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Originally Posted by Chicago Crew UnderBoss
Right now the TrickFlow 225s are king of the hill and making the most power on a 402 motor like yours. I would go with TRICKFLOWS no question, as they are in the same price league as the AFRs and clearly make more power!
Similar thread for reading https://ls1tech.com/forums/generation-iii-internal-engine/552661-trickflow-vs-etp-vs-afr-vs-dart.html
04-09-2007, 08:04 AM
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Originally Posted by F8TEL402
TELL ME!!! Stage 3 heads on a 402 do I go AFR, RHS, DART, Patriot???
IMO, the TEA TF Heads are the best flowing 225's out on the market.
Pricey, but like many things in life, you get what you pay for.
Here's a recent bench flow test on a set I just got a week ago.
Here's a shot of the heads themselves.
04-09-2007, 11:26 AM
#7
A nice as the AFR 225s and TFS 225s are, they don't keep up with the airflow of the ET 245,255 and 265s on 400+ CID motors. LS1 Joe is making over 700 rwhp NA with a 402 and ET 255 heads. If you want street strip power with a FAST intake, then the AFR 225s or TFS 225s are awesome, but if you want max power with a race-only setup and are willing to step up to a solid roller cam and run a sheet metal intake, the big ETs are tops in my opinion.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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04-09-2007, 12:14 PM
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so who all makes LS7 heads? i know ET and World Products have a set but is that it? since i am not looking for 700 NA hp would a set of tricked out GM castings make good power? i am thinking stock LS7 heads with port work would out flow even the best LS1 heads out there just because of the design and intake or am i just being retarded...
04-09-2007, 05:07 PM
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Originally Posted by Patrick G
A nice as the AFR 225s and TFS 225s are, they don't keep up with the airflow of the ET 245,255 and 265s on 400+ CID motors. LS1 Joe is making over 700 rwhp NA with a 402 and ET 255 heads. If you want street strip power with a FAST intake, then the AFR 225s or TFS 225s are awesome, but if you want max power with a race-only setup and are willing to step up to a solid roller cam and run a sheet metal intake, the big ETs are tops in my opinion.
04-09-2007, 09:15 PM
#11
Here are some 402-416 combos done by a couple of different vendors on this site.
416 cu in, TFS 225 heads, 538 RWHP 500 RWTQ through an AUTO
https://ls1tech.com/forums/showthrea...82#post6662782
402 cu in, TFS 225 heads, 548 RWHP 499 RWTQ Z06 Corvette
https://ls1tech.com/forums/dynamometer-results-comparisons/667223-vengeance-racing-402-iron-block-tfs-heads-results-inside.html
416 cu in, L92 heads, 551 RWHP 507 RWTQ Z06 Corvette
https://ls1tech.com/forums/generation-iv-internal-engine/675896-416-l92-ported-heads-full-story-plus-results.html
The TFS heads have lighter intake and exhaust valves then the L92's and most other aftermarket heads, which helps with a hydraulic roller cam. Hope this helps.
416 cu in, TFS 225 heads, 538 RWHP 500 RWTQ through an AUTO
https://ls1tech.com/forums/showthrea...82#post6662782
402 cu in, TFS 225 heads, 548 RWHP 499 RWTQ Z06 Corvette
https://ls1tech.com/forums/dynamometer-results-comparisons/667223-vengeance-racing-402-iron-block-tfs-heads-results-inside.html
416 cu in, L92 heads, 551 RWHP 507 RWTQ Z06 Corvette
https://ls1tech.com/forums/generation-iv-internal-engine/675896-416-l92-ported-heads-full-story-plus-results.html
The TFS heads have lighter intake and exhaust valves then the L92's and most other aftermarket heads, which helps with a hydraulic roller cam. Hope this helps.
04-09-2007, 09:35 PM
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Originally Posted by Patrick G
A nice as the AFR 225s and TFS 225s are, they don't keep up with the airflow of the ET 245,255 and 265s on 400+ CID motors. LS1 Joe is making over 700 rwhp NA with a 402 and ET 255 heads. If you want street strip power with a FAST intake, then the AFR 225s or TFS 225s are awesome, but if you want max power with a race-only setup and are willing to step up to a solid roller cam and run a sheet metal intake, the big ETs are tops in my opinion.
04-09-2007, 09:39 PM
#13
Originally Posted by F8TEL402
TELL ME!!! Stage 3 heads on a 402 do I go AFR, RHS, DART, Patriot???
I have some stage 2's now and want to make the move to bigger heads and any CAM offereings are welcome as well.
Not a dailey driver so help me THINK BIG...........
I have some stage 2's now and want to make the move to bigger heads and any CAM offereings are welcome as well.
Not a dailey driver so help me THINK BIG...........
Greg
04-09-2007, 09:46 PM
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Greg I have made over 540rwhp with AFR 225's with the light weight valves on a 402 setup for a 300 shot. 242/250 cam ' special lobes' 
... I am also building my version of a TFS 225 402 LS2 
with a similar but less spread cam . Need about a month on these ones
... I am also building my version of a TFS 225 402 LS2 with a similar but less spread cam . Need about a month on these ones Last edited by SLED28; 04-09-2007 at 09:56 PM.
04-09-2007, 10:03 PM
#15
Originally Posted by SLED28
Greg I have made over 540rwhp with AFR 225's with the light weight valves on a 402 setup for a 300 shot. 242/250 cam ' special lobes' ... I am also building my version of a TFS 225 402 LS2 with a similar but less spread cam . Need about a month on these ones
... I am also building my version of a TFS 225 402 LS2 with a similar but less spread cam . Need about a month on these onesHow quick did the AFR 225 headed 402 run at the track, no nitrous?
04-09-2007, 10:19 PM
#16
Originally Posted by tlaselva
Here's a recent bench flow test on a set I just got a week ago.
[/IMG]
Still great heads though. All the more reason to not get caught up in "flow numbers".
04-10-2007, 08:11 AM
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Originally Posted by Beast96Z
You should put those on a Super flow and watch the numbers drop. Still great heads though. All the more reason to not get caught up in "flow numbers".
Still great heads though. All the more reason to not get caught up in "flow numbers".
04-10-2007, 10:39 AM
#20
Originally Posted by Brian Tooley
Are you using a hydraulic roller cam? Do the heads have titanium valves?
I've seen you harp on this several times. The fact is that the slightly longer valve in the ET 11 degree heads doesn't preclude the engine from turning 7000+. BTDT.