Well...the 305 down the street was sold so I'm now looking for a short block assembly. Anybody have any experience with Larrys Performance I've seen em advertise in the back of Car & Driver and Chevy High Performance mags for awhile. They seem to be the cheapest. I'm looking at the 383 4 bolt One piece seal with just the Kieth Black forged Pistons, moly rings, crank, oil pump, rods and bearings. not assembled for $1200. Everything else is all new from the other engine. I have to check if the cam bearings and freeze out plugs are in. Any thoughts? Oh and cooling isn't a problem. Water in these isn't recirculated. It actually runs pretty cool even at high rpms. Well as long as oil is pumping.