d_stack

hey wats up everyone ... i got 1990 iroc . i just threw in a 350 vortec out of a 99 tahoe, runs great but i wanna put a different cam ,nothing too crazy i just want a good solid daily any suggestions or anything else i should do ??thx in advance

five7kid

iTrader: (14)

Welcome aboard thirdgen.org.

Stock Vortec valve springs can't take much more than stock Vortec lift & RPMs. Aftermarket valve springs are a must.

If you go with beehive springs, you can also gain more valve travel. Otherwise, don't exceed .480" lift without pulling the heads and having the top of the valve guides cut down (actual lift # reports vary - some say they've seen unmodified Vortec heads that couldn't handle .440" lift).

d_stack

so basically i need to start with the heads ,im kinda new to dealin wit motors i kno how to put em in just dont kno muck enternally about motors , so what all do i do with the heads ?? i thought vortec heads where good

zraffz

Vortec heads are good and with a little bit of machining they are impressive to say the least. From what I have been told, it's best to not run anything bigger then a .430" lift cam on stock heads. If you pull the heads and send them to a shop they will set them up (relatively cheap) to accept a much larger cam; such as the LT4 Hot Cam .525" lift. On this setup you can see 400 horses pretty easily.

d_stack

thanks for the info but if i send them to a machine shop wat do i need to do exactly thanks in advance

d_stack

[quote=five7kid;4744687]Welcome aboard thirdgen.org.

quote]

thanks im glad to be here

zraffz

Read this, it will answer everything you need to know:
http://www.chevyhiperformance.com/ho...458/index.html

88blkiroc

Also read this, goes into a lot more detail. One other thing, try to type and spell correctly, it makes people take you seriously and want to help you instead of getting pissed off trying to read lazy type like kno and wat. You will get more quality help by speaking like a grown up.

http://www.nastyz28.com/forum/showthread.php?t=56505

d_stack

alrighty im just lazy ..

vetteoz

iTrader: (13)

So you will get lazy answers like Yes and No
if we kant reed + undastand whot u rote then we kant give rite ansa

jchaussee

How did the vortec fit in bay? Plenty of room? Been thinking of doing same . Works with truck sepentine system?

zraffz

You plan on keeping the motor fuel injected? If you switch to carb, it will fit just like any other small block. If you keep it fuel injected you might have to take off that airbox they have, I don't know.

d_stack

ya i went carbeurated.. it went in just fine with all front accessories ac comp kinda sit up high tho

d_stack

any suggestions for me vetteoz or you just came to say that???

jchaussee

Yeah I would probaly keep FI. I was curious about accesories because I hear with an LS swap , if you use motor form truck you have to get car accessories. I would probaly delete AC so it sounds like it would work good.

d_stack

no truck accessories works in mine even with the ac .. ima rookie at all this so i kept the carb,wish you luck with that . send pics when finish

InfernalVortex

iTrader: (4)

You can use everything that comes off the front of a 3rd gen V8 on a 96-98 Vortec 350.