i have a 265 in my truck and its tough to find parts. there is a junk yard in Bartonville , Illinois that has a 265. I will try to get the name of the place today and send a message back to you
Here is another engine. http://sfbay.craigslist.org/pen/pts/546635867.html Here is a place that sells rebuild kits for the 265: http://www.rpmmachine.com/engine-rebuild-kits-chevrolet.shtml You should just google chevy 265 or something like that. i found 2 engines and one rebuild kit in like 10 seconds.
265 engine unless you are trying to do a correct resto why not use a 283 easier to find,repair and upgrade
keep your truck I just need a motor why not a 283 302 327 350 then a little bigger 454 12000.00 will get me one even bigger this site is just a joke