I'm looking into a '92 Buick Roadmaster with the 180hp 350. I'd like to know if that engine can ultimately be upgraded to LT/1 spec, or if the LT/1 is a unique block, i.e. one cast for roller lifters and cams, and the other isn't. If I can upgrade, what parts do I need? I Imagine heads, cam, and intake...any specifics? Are these parts obtainable? Also, what other parts are out there for these full-sizers?