If you post the block and head casting numbers then we can pin it down. Also get the stamped number next to the dist. If it's a pre 1954 (or 53 powerglide) motor it would have been a splash oiler, they used to drill those cranks back then and make full flow oiling. Also look in the spark plug hole and see if you have pop up pistons, these motors were very low compression. My old early 235 has been modified to accept a later 235 crank, but suffers from low compression. These old motors needed lots of head/valve work to bring up compression or use pop ups.
