I know a guy who has some '51-'62 Chevy truck engines. He thinks they are mostly 235s, but there may a couple of 261s, too.
How can I tell the difference between 235s and 261s?
It's been over 40 years since I've worked on a 235, or 261....memory's fuzzy.
I'm sure there's serial numbers that will indicate which engine it is...anyone have any guidance to suggest?
Thanx in advance
