Look up the closest outlet of the "Internal Engine Parts Group" with an online search. They have several regional distribution centers that cater to professional engine builders. If you have a local garage or a machine shop that you deal with, sometimes the savings can be considerable over retail sources like Rock Auto. I've been doing business with their facility in Nashville for 30+ years.
If you're thinking about doing an "in the frame" rebuild like we used to do regularly- - - -piston rings, rod bearings, valve job, and maybe rebuild or replace the oil pump, be sure to measure the cylinder taper. If it's more than .005" or so you'll have a very short life engine.
Jerry
