LS1SpeedAddict

iTrader: (9)

Does anyone know if either the 4150 or the 4500 will directly bolt up to a super vic like in this picture or is their some custom modifications?

JBM

iTrader: (15)

4150 will bolt right up. You'd need an adaptor plate to use the larger 4500.

Camaro396

iTrader: (14)

What JBM said. 4150 style TB (pictured) will bolt right up. 4500 will need the 2" Moroso adapter plate, which is what I use.

LS1SpeedAddict

iTrader: (9)

what about to a vic jr.?

Camaro396

iTrader: (14)

Yes. Same goes for the Victor JR. I use a regular Victor JR, posted in my picture above.

Speed Density

iTrader: (38)

If its a 4150 flange then it will work, just make sure the intake you get is. Fwiw, i think all the direct bolt on LSx carb intakes are 4150.

JL ws-6

iTrader: (50)

you can have the top of the intake milled and a 4500 flange welded on, then port the top to clean it up if you wanted to, so the spacer isn't a 100% must. This would be a good way to get it on and kep the TB a couple inches lower, IMO FWIW you want to keep as much distance from the top of the hood to the TB as possible to prevent the hood from disturbing/decreasing airflow.

That and if you want to put an air filter on you'll need the clearance.

LS1SpeedAddict

iTrader: (9)

Thanks guys I'm gonna look at some more CFM numbers and talk to my tuner before I make my final decision.