Hey guys, thanks a lot for the info. It helped a lot. I know for a fact it doesn't have hardened valve seats, but thats alright. I'm going to build up a 261 soon so I won't be driving it much anymore. Thanks again.

Chad

1955 Chevrolet 210 2 door Sedan
a 30,000 mile UNMOLESTED original, now my daily driver! Original 6 cylinder with a rebuilt '66-'69 Saginaw 3-speed Overdrive. Synchro low! Otherwise, everything original down to the spare tire. Interior is like new. Needs paint, but absolutely zero rust.