Sorry about the coating answer...you said what was the difference and that really is it...the coating. AFAIK everything is the same...I think even the pins are identical too. IMO, only thing I would put any money into is the rod bearings and the rods themselves. That is just me though...I'd get some powdered rods and Clevite Bearings...that way when you rebuild it...it'll be stronger...you'll have less a chance of this happening IMO. Also, I'd get a 3" Downpipe for it...you can get them catted too...but after seeing this...I'd want the thing to breathe...and since you have the engine out...it'll be easy as hell to do. Plus, better performance when you need it and better MPG's to boot.