will these heads be enough?
Launching!
Joined: Dec 2001
Posts: 241
Likes: 0
From: Bowling Green, Kentucky
Well I know you've already decided on GTP's and I understand why. Only thing I was going to say is that if you think TEA hasn't put out good numbers, well that's not exactly right. Their C5 with Stage 1.5 5.3 heads and their nearly stock bottom end 346 ran 9.87@138mph so I think their numbers are pretty good if you ask me.
BTW just for the record about TEA making power...the TEA 2.5's made 690rwhp with NOS on a factory short block and much smaller cam and intake not up to LSX standards compared to what Monkey is building. The TEA 2.5's were a 90rwhp gain over the prior 1.5 TEA heads on the gas with no other changes. Add in Monkeys extra ~50 CID and well you get the pricture...750rwhp? Who knows...
FWIW the TEA 2.5's will put excellent numbers agreed Snake...but let's not side track Monkeys thread too much. It's his project and he should build it so he's happy with the part selection and so on since it's for his car.
Monkey what's the set up work out to be a 396 or something like that? I would really want that LSX intake with ~400 CID and that cam and good heads. That will give you way more than the other valves.
Likewise, If you give them your LSX intake to test with GTP might be able to alter the valve job on your current heads to get you max flow with the current valves and/or match the flow to your exact cam and intake. That and a little GTP porting on the LSX for max flow and I think this would be very cost effective way to make the best power with the 2.02 valves.
Of course I'll always be wondering what the TEA 2.5's would have done on your sweet set up
FWIW the TEA 2.5's will put excellent numbers agreed Snake...but let's not side track Monkeys thread too much. It's his project and he should build it so he's happy with the part selection and so on since it's for his car.
Monkey what's the set up work out to be a 396 or something like that? I would really want that LSX intake with ~400 CID and that cam and good heads. That will give you way more than the other valves.
Likewise, If you give them your LSX intake to test with GTP might be able to alter the valve job on your current heads to get you max flow with the current valves and/or match the flow to your exact cam and intake. That and a little GTP porting on the LSX for max flow and I think this would be very cost effective way to make the best power with the 2.02 valves.
Of course I'll always be wondering what the TEA 2.5's would have done on your sweet set up
Last edited by 99 Black Bird T/A; Dec 13, 2003 at 09:46 AM.
Thread Starter
Launching!
Joined: Oct 2003
Posts: 283
Likes: 0
From: texas
it will be a 392. that sounds like another good option black bird. but when will that intake be out? i have to decide by the end of this year on what to do.
snake, i know that TEA does have some quick cars, but GTP has had several cars running mid 10s n/a on the S2 head. i am not naive, i know there are other great set of heads, i just prefer GTP for personal reasons...just like black bird prefers TEA..and others prefer MTI..and so on. i guess it was when i talked to craig @GTP for over 1/2 hour(on several occassions) that i decided this is where my money is going. i guess you can call me an attention *****
snake, i know that TEA does have some quick cars, but GTP has had several cars running mid 10s n/a on the S2 head. i am not naive, i know there are other great set of heads, i just prefer GTP for personal reasons...just like black bird prefers TEA..and others prefer MTI..and so on. i guess it was when i talked to craig @GTP for over 1/2 hour(on several occassions) that i decided this is where my money is going. i guess you can call me an attention *****
Last edited by monkeyboy; Dec 13, 2003 at 09:50 AM.
Originally Posted by monkeyboy
it will be a 392. that sounds like another good option black bird. but when will that intake be out? i have to decide by the end of this year on what to do.
snake, i know that TEA does have some quick cars, but GTPl has had several cars running mid 10s n/a on the S2 head. i am not naive, i know there are other great set of heads, i just prefer GTP for personal reasons...just like black bird prefers TEA..and others prefer MTI..and so on.
snake, i know that TEA does have some quick cars, but GTPl has had several cars running mid 10s n/a on the S2 head. i am not naive, i know there are other great set of heads, i just prefer GTP for personal reasons...just like black bird prefers TEA..and others prefer MTI..and so on.
Likewise, with your ~392 cubes, you might be able to get a little porting done on your LS6 intake. I think GTP has done that before for ~400 sized engines. Will cost some bottom end torque and help up top if I remember correctly.
TECH Regular
Joined: Dec 2001
Posts: 426
Likes: 0
From: So cal.
Originally Posted by monkeyboy
i am in the process of getting my block machined to make a 392 all bore motor. i have GTP S2+(2.02/1.57) heads now, but i am really having a tough time deciding on what to do. should i just slap these heads on the motor swap the 918 springs for 921s and make up for the flow with a bigger cam? or should i send the heads back to GTP and upgrade to a S3(2.05/1.6) head? what really worries me is that the S2+ will not be enough head to get me into the 10.8 range n/a. lemme know what you guys think.
Thread Starter
Launching!
Joined: Oct 2003
Posts: 283
Likes: 0
From: texas
i have talked to craig. he given me several options:
1. upgrade to S3 with 2.05(or 2.08)/1.57(or1.6)valves only
2.full out port job with the larger valves and dual springs
3. just get 921 springs and go with bigger cam
4. just get some more port work done to the S2+ heads i have now.
but i am really leaning towards that S3 valve upgrade. i can sell the valves and springs(918s) to offset the upgrade. i have some wheels for sell, if i could get $300 bones for those, i would go all out on the S3 heads(the whole enchilada baby
) and ask craig to get 340+cfm.
1. upgrade to S3 with 2.05(or 2.08)/1.57(or1.6)valves only
2.full out port job with the larger valves and dual springs
3. just get 921 springs and go with bigger cam
4. just get some more port work done to the S2+ heads i have now.
but i am really leaning towards that S3 valve upgrade. i can sell the valves and springs(918s) to offset the upgrade. i have some wheels for sell, if i could get $300 bones for those, i would go all out on the S3 heads(the whole enchilada baby
) and ask craig to get 340+cfm. LS1 Tech Stories
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..i think you are right. i told craig i will stop by his shop after the holidays. 
