AI cathedrals on ls3
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
AI cathedrals on ls3 I’ve got an ls3 I’m putting to together, JE pistons, trex cam, Fast 102, 1 7/8 ARH longtubes, stock bore and stroke motor. Just looking for opinions on AI’s 226 and 232 243 heads. Anybody ever run either of these on a setup similar? Looking to run mid-low tens on with the setup at 3k weight with driver. Just curious to see results from people who have. Don’t need to hear go with this or that just wanting to hear/see about the A.I. Heads, thanks guys!
Last edited by zboy2012; Nov 11, 2018 at 01:51 PM. Reason: Forgot to put something in
This version of T-ReX cam? T-ReX v.2 - 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band.
I think this the Vengeance Racing VRX5 cam also very popular with LS2 builds might be a better match for the AI heads. Specs are 236/238 .601/.605 113 LSA
2100-6800 RPM Power Band.
What sizes valves in the AI heads? I think AI is well proven and should work well. I would ask AI what cam they suggest for best results with the heads.
With the LS3 4.065 bore, I would want a good a 2.04 intake valve over the stock 2.00 valve. The bigger valve should flow a bit more.
I think this the Vengeance Racing VRX5 cam also very popular with LS2 builds might be a better match for the AI heads. Specs are 236/238 .601/.605 113 LSA
2100-6800 RPM Power Band.
What sizes valves in the AI heads? I think AI is well proven and should work well. I would ask AI what cam they suggest for best results with the heads.
With the LS3 4.065 bore, I would want a good a 2.04 intake valve over the stock 2.00 valve. The bigger valve should flow a bit more.
Last edited by 99 Black Bird T/A; Nov 11, 2018 at 02:27 PM.
Thread Starter
Launching!
Joined: Jan 2012
Posts: 269
Likes: 3
From: Attica, IN
This version of T-ReX cam?
T-ReX v.2 - 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band.
What sizes valves in the AI heads?
With the LS3 4.065 bore, I would want a good a 2.04 intake valve over the stock 2.00 valve.
The bigger valve should flow a bit more.
The 2.08 valve would be nicer still but it would require new valve seats to do correctly and probably be more expensive than its worth for 5-8whp.
I'm having Land Speed Cylinder Heads revise my 250 cc intake runner GMPP 243's with a new valve job and new 2.04 intake valves for an LS2 366 or LS2 402 project. Plan to post the before and after flow test results.
T-ReX v.2 - 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band.
What sizes valves in the AI heads?
With the LS3 4.065 bore, I would want a good a 2.04 intake valve over the stock 2.00 valve.
The bigger valve should flow a bit more.
The 2.08 valve would be nicer still but it would require new valve seats to do correctly and probably be more expensive than its worth for 5-8whp.
I'm having Land Speed Cylinder Heads revise my 250 cc intake runner GMPP 243's with a new valve job and new 2.04 intake valves for an LS2 366 or LS2 402 project. Plan to post the before and after flow test results.
