Originally Posted by PMDSOA
Actually the 255 and 257 are not that similar. The only thing that is the same is the block itself. ervything is pretty much different. Different heads and internals. Sti top mount does fit under a LGT hood. You need to swap everything over to make it work . Its more work than just swapping out the TMIC but it does fit with no modification to the actual hood
While I could be wrong about a few things in the heads...like cams degree and maybe I'm wrong about the harness, but I promise with out a doubt that shortblock in this leg gt and outback xt are identical. I'm holding a new rotating assembly out of a sti short block and my rotating assembly out of my xt and every thing is identical...piston sizes, journal sizes, numbers on pistons rods and crank all match.