pretty sure that chevy high performance put a 5.7 ls1 into a chevelle. requires frame mods to fit the ac compressor and welding of the alum. oil pan to fit a chevelle crossmember. but maybe somebody has a solution to that.
the mounts on the gen III engines are like 4-5 inches back on the block, but advance adapters makes a bracket to move it back to "regular".
ryan