New 350

[Z71Sierra]

I am going to start building my '94 GMC Sierra. I have 170k on it and the only thing original is engine and rear end. Since I cannot sell this truck for even what I have stuck into much less blue book I have decided to have fun with it.

First up is a new engine. I was looking at a few crate engines from jegs. I can get a new crate engine for 3.5k or a replacement TBI for 1.6k.

What do you guys think about just getting a replacement TBI and supercharging it?

Eventually my truck will end up with new engine, 6in suspension lift and a 2 inch body lift.

Is this a good idea? Any other ideas?

[OneFastHalfTon]

For ease of replacement itd be better to go with the TBI motor, but i guess if you're not weary of electrical systems - go with a crate and different injection setup, vortec maybe? I like my TBI but theres just so much more potential in the vortec world.

as for the lift, right on!

[Z71Sierra]

what about a supercharged tbi? is it possible? A supercharger would give me the low end torque for mudding and handle a lift better but would it rip my engine apart?

[Z71Sierra]

What would I have to do to a TBI to supercharged it?

[X-Runner]

IMO buy a stock rebuilt vortec for $1200, stick a cam in it and drop it in. Keep TBI, they make super chargers and stuff

[Z71Sierra]

IMO buy a stock rebuilt vortec for $1200, stick a cam in it and drop it in. Keep TBI, they make super chargers and stuff

I know but if I have to modify a stock TBI to be able to handle a supercharger or can I just put it on?

[X-Runner]

Needs to be modded either way IMO

[Z71Sierra]

Like what mods?

[ruger4d4]

if you wasnt looking for horsepower jegs has a brand new crate 350 for 1700 bones

[X-Runner]

Search for the TBI mods...

If your not looking for big power get a remain 350 for $1100-$1200 IMO

[Z71Sierra]

I wanna know if I what I have to do to a stock replacement TBI to put a supercharger on it.

[ruger4d4]

nothing far as the internals you might wanna slap some roller rockers and things like that

[Z71Sierra]

What kind of roller rockers? I don't know anything about that part of the engine. Please help!

[96ImpSS]

IMO buy a stock rebuilt vortec for $1200,....
Do you have source(s) for this deal? I may want to check them out to see how extensive their rebuilds are. I was thinking a new $2200 L31 for for mine when the time comes.
And yes, it WILL get a cam and springs before it goes in ;)

[X-Runner]

Do you have source(s) for this deal? I may want to check them out to see how extensive their rebuilds are. I was thinking a new $2200 L31 for for mine when the time comes.
And yes, it WILL get a cam and springs before it goes in ;)
http://www.cmengines.com/Engines/OEMRemanufacturedEngines/tabid/64/Default.aspx

[Z71Sierra]

http://store.summitracing.com/partdetail.asp?part=NAL%2D12568758&autoview=sku

There's one for 1799.95

[X-Runner]

$500 more for less power and a non vortec engine...

[ruger4d4]

yeah 500 more but its new from gm

[claviz13]

I wanna know if I what I have to do to a stock replacement TBI to put a supercharger on it.

Nothing. You can easily bolt on a supercharger and run 5-6psi with a stock TBI.

[Z71Sierra]

$500 more for less power and a non vortec engine...

Isnt't that a direct tbi replacement?

Say I wanted to put rockers in a cam in the new engine. What should I get and would that mean putting a smaller pully on?

[Z71Sierra]

And what is a good supercharger company for our trucks? Whipple? Or is there better ones?

I want to go new gm crate because I can go pick it up. No shipping charges.

[claviz13]

I have never heard anyone complain about a Whipple. Sure they're not intercooled but you can solve that problem with a water/methanol injection kit. I love mine but it's a Vortec. There are some WhippleCharged TBI guys on here. Come on boys help this guy out.

[FordeatinZ71]

or you could move away from the rest of the flock by getting a crate 350 and throwing a totally different injection system on it, like Holley's Stealth Ram or Super Ram....they make really good power too...and can also be S/C'd

[Z71Sierra]

ttt

[Z71Sierra]

I remember this site having more answers. Nobody can tell me what cam I need to have to supercharge a TBI?? I know nothing about cams and rockers.

It makes me question this build if I don't have somewhere to go with questions. (I gotta lot)]

Please help!

[gmcguy1953]

Do a google search.You'll find alot of answers.

[claviz13]

Nobody can tell me what cam I need to have to supercharge a TBI??

You can use your stock cam.

[Firestrike87]

Why hasn't anybody mentions a stroker rebuild? Mgrotel just did one and is very pleased with it.