I've been researching this trying to determine if it is possible on an lt1 setup....I realize that it is near impossible with ls1's.

 

Depends on the specific wheel. There are 15x7's that will fit the LT1 front brakes, and there are others that may have interferences. There are people here running various width Weld Pro-Stars on the front, and all they need is a thin spacer to move the center disc of the wheel away from the spring clip on the brake pads, and the horizontal bar on the steering knuckle that supports the calipers. The calipers don't interfere.

 

I would be interested in the summit knock offs of the prostars in the 15x7

 

The "Summit knockoffs" appear to be the discontinued Weld XP's. They are like the Pro-Stars, or the Draglites in appearance only. But they are a cast 1-piece wheel, not a forged 2-piece wheel like the Pro-Star or Draglite.

 

would they likely cause interference issues??