Originally Posted by vital49
Why'd you get a new motor to begin with? Those 305s are just as strong as the 350s.
Lots of past abuse I suspect. Lots of blowby, leaking oil from rear main, and oil and coolant from intake manifold, dangerously low oil pressure due to bearings being chewed up by crank shaft journals that looked like someone pounded on them with a hammer and chisel.
I priced out the cost of parts to rebuilt along with the cost of a crank shaft and boring out the clys, a new crate engine was only a few hundred dollars more. I'm not in the mood to take my chances with a used motor from the j/y. Been there, done that. I want a reliable truck to tow a travel trailer out on the back roads.
I'm thinking now that I'm going to get the tranny looked at very carefully before too long.