ok well i didnt find info on this, which is hard to believe cause i figure someone had thought of this before...ayways here i go...well i was browsing ebay and learned the pontiac had some 2nd gen turbo V8's. i was lookin at the set up and was wondering how hard it would be to hook it all up to our 305 or 350's. now this turbo was on a 301ci 4.9L motor, but with some tweaking and modification it should work on a 350....right??but then i was thinking....didnt pontiac make there own engines and not use the SBC? so i was thinkin the bolt paterns might be differant, but they all used the computer controled QJETS as well. can i get some insight on this subject?

It's been gone over before and its not worth it. The ports on the pontiac are spaced differently, so the manifolds are useless. The rest of the ducting probably isn't much good either. IIRC the turbo could barely feed that 4.9, so I don't think it's going to do much good on a healthy 350.

alright, thanks for the info, i thought it looks weird and to simple.. my other friends are like "dude do it, the set up is only 40 bucks on ebay!" ...but i dont listen to anyone that drives a honda

You can use that to get your own ideas. If you have a welder, and lots of time and money, then you can make your own turbo system fairly easily. All of the flanges and pipe and silicone, and blah, blah, blah, can be bought online.

I'll agree that the 4.9L turbo system is fairly worthless.

I was thinking the same thing, but the part I want is the place that mounts to the carb and forces air in, then just doing my own exhuast plumbing and getting a junkyard turbo. That carb box/adapter (honestly I dont know how it works, I know they had quadrajets and a turbo, i just want the turbo to carb thing) would fit it seems.

Well, like greasemonkey said, the you'll have to come up with exhaust manifolds that will bolt up to an SBC.

The second problem that I see is that the turbo used was a fairly small Garret T03 (a 60 trim with either a .63 or .8x AR exhaust turbine), which can only pump enough air for about 300hp, 325 max, and the exhuast turbine is small enough that it would probably restrict you down to 4000-4500 rpm.

cant bolt up a t3 or 4 to it? and for the manifolds..did theyjust have it connect to the passengers side, or did they connect to both manifolds. i think if you had acsess to some old headers and a welder and some pipe, you could make your own fairly easy.

t3's, some t4's and some holset's use the same turbine inlet flange. GM uses it's own turbine outlet flange that matches nothing except the high $$$ aftermarket turbonetics turbos (I'm pretty sure the old 4.9 turbo has the same flange as the turbo buicks and possibly the turbo sunbirds), for that matter the it seems that every other turbo uses something different there. Most T3's have the same 5 bolt assembly at the turbine housing, but it's a pain to connect to that because that cast housing that usually bolts to the turbine housing also contains the wastgate.

Some saabs and Volvos use a wastegate housing that had a straight outlet which should be easier to adapt to custom applications (I know that turbo city sells them), but since the outlet is fairly small in a performance application you're better off just cutting the cast piece in half and welding on a 3" down pipe.

Yes, both sides are connected to the turbo, they pretty much have to be to get the thing tuned right