Looks like it is from a big truck and weights about 100+ pounds. Which would have paid you $10+ in cash at the nearest scrap yard.
Yup, a big old straight 6 of some kind.
Did you go to Sizzler with the $$ from the recycler?
Unfortunately, I had to spend the money on a hernia truss.
when your balls hit the floor , like a B-54its a rupture