A friend of mine is trying to identify an early 'thirtys' engine, numbered 339400. Number stamped near the distributor is K4553935. I looked at the casting #s on this site but no luck. Can anyone help me with this?
Flathead (bolts in the head, spark plugs through the head from above, cast-iron, may have ribs or pattern), or OHV (sheet metal cover like a modern engine, spark plugs in the side below the cover)? L4, L6, L8? Which side are the ports on?
Photos would help, the Chevys all had casting dates cast into the block, i.e. '17L5' for the date, month, and last numeral of the year. Let us know what you find.