LT1 vs. LS1 (engine mounts)

I am thinking about buying a used LT1 or LS1 and building it up for an engine swap. I was just wondering if anyone knows if the engine mounts are different between the two engines. I know that they were both used the the four gen firebirds and camaro's but when they switched the engines the body styles changed also so i'm not sure if the mounts might have changed.

Yes they are completely different mounts the LS1 has a 6 bolt main and the LT1 has a 4 bolt main on the Corvette and bolt on the F-body