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Re-building 350 TPI help with parts advice, input please!
So im re-building my 350 TPI in my 90 Iroc, its all stock except the Holley 54mm (i think) throttle body and K&N filter. so basically ive got some parts picked out and just want some ideas and input as to if there going to work together and what i should use for the stuff im missing.
just for a baseline, its going to be my daily driver, dont want to get to crazy but i want it beefy. i do plan on rebuilding the rear end and have a heavy duty rebuilt 700r4 with a stage 2 B&m shift kit. i know itll be alot to go through but any help would be much appreciated.
now i know theres more to it and thats the other bit i need help with, what Cam to use? ive heard a ZZ9 cams are good. as well what ignition? upgrade to a MSD box? what would be good headers? am i going to need a custom prom or would a hypertech ect chip do?
what else am i missing? its just a lil overwhelming, this is my first real project and i dont have anyone to really help me so im hoping my third gen bretheren can. thanks!
- Erick
__________________ 90 Iroc-Z 5.7 HSR
Stage 2 700r4
Magnaflow Cat back + Headman headers and y-pipe
"Havok" "Serene" (as in the hot chick from Underworld haha)
Re: Re-building 350 TPI help with parts advice, input please!
i guess as well im not shootin for any higher than 350 obviously itd be more with the NOS. and will i have to upgrade the pistons, crank ect? thanks again guys lol
__________________ 90 Iroc-Z 5.7 HSR
Stage 2 700r4
Magnaflow Cat back + Headman headers and y-pipe
"Havok" "Serene" (as in the hot chick from Underworld haha)
Re: Re-building 350 TPI help with parts advice, input please!
it would be wise to rebuild the bottom end as well espically if it has some miles on it... i upgraded my old l98 with a crane cam and a highflow tpi and some headwork on the stock block and a few months later i spung three bearings on the dyno... btw that holley should be a 52mm instead of a 54mm..
Re: Re-building 350 TPI help with parts advice, input please!
the gm hot is a good combo with that setup u have there.... they gotten 354hp by 410tq with that setup........ that would be a very daily driver..... i have that combo minus the heads and the power feels really good....
Re: Re-building 350 TPI help with parts advice, input please!
Quote:
Originally Posted by 88fastgta
the gm hot is a good combo with that setup u have there.... they gotten 354hp by 410tq with that setup........ that would be a very daily driver..... i have that combo minus the heads and the power feels really good....
wooohoooo 345 lol, thats right around what i wanted lol.
Re: Re-building 350 TPI help with parts advice, input please!
Quote:
Originally Posted by 88fastgta
it would be wise to rebuild the bottom end as well espically if it has some miles on it... i upgraded my old l98 with a crane cam and a highflow tpi and some headwork on the stock block and a few months later i spung three bearings on the dyno... btw that holley should be a 52mm instead of a 54mm..
so what things are involved with rebuilding the bottom end as well?
Re: Re-building 350 TPI help with parts advice, input please!
thats at the motor and they dont tell you that you need to port the manifold to get that.... i would port the runners plenum and base to get those numbers...
Re: Re-building 350 TPI help with parts advice, input please!
Quote:
Originally Posted by 88fastgta
thats at the motor and they dont tell you that you need to port the manifold to get that.... i would port the runners plenum and base to get those numbers...
i do plan on porting everything as well
and even if thats not at the wheels thats still plenty for me
Re: Re-building 350 TPI help with parts advice, input please!
yeah that combo you would be more than happy with.... i would also do things like a new torque arm, sfcs, lcas, panhard bar to really take advantage of all that new power.... after that then you will be set...
Re: Re-building 350 TPI help with parts advice, input please!
i've heard from a couple different sources that the
"roller"blocks can crack in the lifter valley,but don't
know any details on where the cracks occur-just
something to check if you have the shortblock apart.
Re: Re-building 350 TPI help with parts advice, input please!
Quote:
Originally Posted by 8t2 z-chev
i've heard from a couple different sources that the
"roller"blocks can crack in the lifter valley,but don't
know any details on where the cracks occur-just
something to check if you have the shortblock apart.
ive seen braces for the valley on jegs, would that help prevent that?
Re: Re-building 350 TPI help with parts advice, input please!
what about a ZZ4 cam? how much of a difference between it and ZZ9, do they go by other names? i cant find them on jegs/summit or ebay
__________________ 90 Iroc-Z 5.7 HSR
Stage 2 700r4
Magnaflow Cat back + Headman headers and y-pipe
"Havok" "Serene" (as in the hot chick from Underworld haha)
