Block 3769716 (1958-1962) Date Code: J 17 0 (Oct 17, 1960 (1961 model year).
Serial Number: FI0I8BE (Originally assembled at Flint, Mich factory, assembled Oct 18th with a powerglide attached)
Head 3836848
This engine came from a truck during a V8 swap but wasn't this for a car because of the power glide?
It has a car balancer.