They have both passed so I don't know when the motor was put in. Before she got it, I know that. It has been garaged fir the last 25 years fir sure. From the numbers and markings it's a 1970 350 yu code from a pontiac tempest. But has the 409 exhaust manifolds, probably from the original 400.o wondered if the teeth count was different since it won't go right back in and out. Guess I'll see if I can still count that high, lol
