Re-building 350 TPI help with parts advice, input please! - Third Generation F-Body Message Boards

vendetta · 10-27-2009, 01:46 AM

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.

so im thinking :
Vortec Heads http://www.summitracing.com/parts/SUM-151124/ or
http://www.summitracing.com/parts/NAL-12558060/
Vortec baseplate/manifold - http://www.summitracing.com/parts/EDL-
3817/
SLP Runners - http://www.summitracing.com/parts/SLE-20002/

Gasket Set - http://cgi.ebay.ca/SBC-Chevy-FelPro-...3D10%26ps%3D63

Nitrous - http://cgi.ebay.ca/ws/eBayISAPI.dll?...=STRK:MEWAX:IT

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

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vendetta · 10-27-2009, 01:48 AM

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

Damon · 10-27-2009, 07:42 AM

Are you rebuilding the bottom end or just doing a cam/intake upgrade to the stock long block?

88fastgta · 10-27-2009, 09:03 AM

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..

88fastgta · 10-27-2009, 09:05 AM

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....

vendetta · 10-27-2009, 02:33 PM

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.

vendetta · 10-27-2009, 02:34 PM

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?

88fastgta · 10-27-2009, 06:33 PM

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...

vendetta · 10-27-2009, 07:16 PM

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

88fastgta · 10-27-2009, 08:51 PM

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...

8t2 z-chev · 10-27-2009, 09:06 PM

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.

vendetta · 10-27-2009, 09:30 PM

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?

Damon · 10-29-2009, 10:19 PM

Don't worry about it. You're not cracking a block at those power levels.

vendetta · 10-30-2009, 12:36 PM

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