Vortec Heads

[eddinger]

I was wondering if I could replace my old heads with a set of Vortec heads on my 3/4 ton Suburban? I'm not looking to get as much power out of it as possible, just a little more. If I can free up some funds I might do a few things to the lo' girl(93 TBI C2500 454).

[becker87]

Never done it myself, but i have heard you can. The vortec heads breath a lot better and are lighter then the ones in your TBI. I use to have a 94 half ton silverado with the 350 TBI and was considering the same swap but never looked into any details about it.

[04JJHD]

I know you will at least have to get a different intake manifold. I'm sure some company make one

[jro909]

i believe it is one of the must do mods for TBIs....save your funds and get rid of those gawdy hub caps lol

[eddinger]

IT IS VERY HIGH ON THE LIST OF THINGS TO DO.

[66nova]

You can do this swap and it's worth quite a bit of power. BUT, you will need a different intake manifold. You have basically two options here. You can either buy the intake that GMPP makes which is a direct swap. It will fit the vortec heads and has a mount for your TBI. This intake is pricey...around $350 to 400. Or you can buy a 4 barrel carb vortec intake and buy an adapter plate to fit your TBI. This is a cheaper and just as good of route to go.