Anyone have Frankenstein stage 1 243 heads?
#41
TECH Veteran
iTrader: (2)
I don't think the OP can go wrong with Frankenstein, PRC, AI or TEA stage 1 heads. I will say this, I have the PRC stage 1 heads and even with the stock cam, the heads pull hard from about 2000 rpm up. Even thought the intake port is quite a bit larger than stock 853/241 heads they aren't too large.
#50
Nice, sounds fun! My setup will be in a 96 c1500. Fresh rebuilt SBE ls1, FED stage 1 243's, BTR stage 2 LS1/2 cam. Probably 36-3800 stall, 4.30's. First build for me so it should be fun
#51
FYI, the info on their website is wrong. I guess the person that did their website got numbers mixed up.
From FED on 1/11/18:
224cc intake
Int
0.200/148
0.300/226
0.400/263
0.500/294
0.600/304
0.700/309
Exh.
0.200/108
0.300/150
0.400/176
0.500/208
0.600/221
0.700/228
From FED on 1/11/18:
224cc intake
Int
0.200/148
0.300/226
0.400/263
0.500/294
0.600/304
0.700/309
Exh.
0.200/108
0.300/150
0.400/176
0.500/208
0.600/221
0.700/228
#52
Numbers still climb all the way to .700. Not sure if I'll take full advantage of that with my setup but impressive #'s. Anything around this price range is all going to be within a few rw #'s anyways. Dropping my 243's off with my tuner tomorrow
#53
Based on all of the research that I did:
- FED has a smaller intake runner than AI, TEA, WCCH, or PRC.
- FED's stage 1 heads actually flow MORE at .2 and .3 than stage 1 or 2 from all 4.
- Only TEA stage 2 flow more at .4, but with a 229cc runner.
- Only TEA stage 2 flow more at .5. PRC flows the same but has a 225cc runner.
- All 4 flow more a .6, but that doesn't matter for most of us.
- FED has a smaller intake runner than AI, TEA, WCCH, or PRC.
- FED's stage 1 heads actually flow MORE at .2 and .3 than stage 1 or 2 from all 4.
- Only TEA stage 2 flow more at .4, but with a 229cc runner.
- Only TEA stage 2 flow more at .5. PRC flows the same but has a 225cc runner.
- All 4 flow more a .6, but that doesn't matter for most of us.
#54
for the price, you can't beat it. $1150 and springs included. AI doesn't include a spring kit with their CNC programs. If they're still available, turnaround time for mine will be very little. They mentioned they had some on the shelf ready to go. What cam do you plan to run with your setup? compression? etc.
#55
for the price, you can't beat it. $1150 and springs included. AI doesn't include a spring kit with their CNC programs. If they're still available, turnaround time for mine will be very little. They mentioned they had some on the shelf ready to go. What cam do you plan to run with your setup? compression? etc.
I'm sticking with the base compression, since I'm not 100% sure on the cam.
#56
Nice! I'm leaning towards the BTR stage 2 for the ls1/2, but I'm itching at the stage 3 also. Just depends what the tuner suggests of course. First build for me so I'm learning the ropes