Tore into the 351 out of the boat tonight, it's a nasty beast... and some real units of mechanics have been working on the thing... all of the bellhousing bolts only had 3 threads of engagement but for some reason some had 4 washers? There was a ground wire connected through an intake manifold bolt, I needed 3 different sockets to get the exhaust manifold bolts off (9/16" standard, 3/8" 12 point and 5/16" allen) and again most had 3 threads of engagement (for a 20 pound exhaust manifold). I'd been curious on why it never got over 120F on the temp gauge and now I know, there's a thermostat installed but it's empty so someone had brilliant ideas...
Anyway, I got the affected head off and there's just a smidgen of rust around the exhaust valve on that one cylinder (#2), the rest looks fine? not sure what's going on, ran out of steam for the night so didn't pull the spring and valve since I'll have to cut the stem tip off to get it out (we were really getting deep in the redneckery) or at least do some cleanup grinding... I gotta do some looking, there weren't any dowel pins in the one head I pulled, hopefully they're available aftermarket...
I did grab a dual groove alternator pulley from work tonight, now I just gotta get two new matching belts and cleanup the spacer mess that someone put in the alternator bracketry... and clean off like 1/2 pound of belt dust...
Lots of cleanup to do