v8-7

i have TEA stage 2 5.3 truck heads with 2.02 Ferrea intake valves, and 1.55 UDI exhaust valves and the heads are milled .015. Stock rockers, valve springs that handle up to 650 lift, hardened stock length push rods. Stock bottom end 98 Ls1 with stock thickness head gaskets. Does anyone know if the T-Rex cam will work? or is it piston to valve slam city? Cam specs are
- 242/248 - .608/.612 - 110 lsa Although the T-rex cam im getting is the Verson 1 i think,,, it is probably less aggressive than the version 2? Reguardless, thanks to those who help me out!

Justin99TA

Let me know what you find out I have the same heads but a 160 exhaust valve. I want to go with a bigger cam

racer7088

Not the answer you probably want to hear but you should check unless TEA knows the free drop on those heads possibly.

Fireball

iTrader: (21)

got to flycut.

I have the same setup.... with .040 milled off. I had to flycut .090 intake and .070 exhaust.

at .015 you'll probably have to cut .065 and .045 respectively

v8-7

Maybe il sport TEA a call today. Thought i would ask the LS1tech.com community first. thanks for the responses so far. Anyone else dealt with this setup?
-james

v8-7

damn, fireball posted like seconds before my last post. For flycutting, i have to remove the pistons of course, where can i send them for flycutting? pricing? I read somewhere that someone was attempting to do it themselves, i dont know how great of an idea that would be... Maybe this year il stick with my TR 224 and keep the T-rex on the shelf for next year. If im going to tear into the bottom end im going to get rods, pistons, the whole nine yards.
I see no point in reuseing old stock pistons when i have them out of the car just for flycutting...

Fireball

iTrader: (21)

I flycut mine in the block (but engine was on a stand)

Just need the ISKY flycutting tool (and some patience)

v8-7

i have plenty of patience, i do body work,,, AKA the definition of the word patience, haha.

so, where might i find this ISKY flycutting tool?

Fireball

iTrader: (21)

thunder sells em...but there is a hitch...

the intake cutter won't work with the seat in the head...

gotta get a junk head and pull the seats

my pistons wouldn't reach TDC to do the cuts...which may have been a artifact of my .040 milled heads...not sure.

I cut the back side of the tool (had it machined) so it would recess back.

v8-7

good thing you mentioned it, i think some tool on ebay is selling A ls1 head. yes just one head. So, if i score that, i can do both sides, both intake and exhaust with no problems so long i remove the valve seats for the intake valve???

v8-7

crap. im goin to spend 100 on a junk head, then 130 each for the cutters,,, not worth it in my opinion, il just buy forged pistons w/ reliefs already in them when the time comes. Or have some shop do it to my stock pistons...