
If I can figure out how to post pictures, I'll put some up. Got my 3/4 ton GMC home, found out it was a 66. From the VIN, it was a inline 6, and the empty shift collar meant three-on-the-tree. Hasn't been registered since '85.

-BUT, what it has is a Muncie SM 420 4 speed, and a small block Chevy with "71 307" marked with that yellow paint stick junkyards use. There is a big fan shroud, 7 blade flex fan, and alternator. This is fine for me! The bad news is the 2bbl manifold is empty, and there are rodent nests in the manifold, with some "stuff" down the bores. Haven't tried to turn it over, but the oil looks clean. Suggestions?
Question: Is the longer stroke 307 a good motor for torque/towing, or is a later 350 better? Remember, I'm a Ford guy and really don't know the subtle differences in small blocks.