I just got a '59 Coronet that has a 400 put in it.

On the pad under the distributor is 71 400 with 11 under that.

On the block skirt is 7R704371

Can anyone tell the year and what it came out of?

Thanx!

1977 Windsor. B-body probably. From what I've seen is that they didn't put the vin on truck motors.
Should be a casting number and date on the side of the block.

I will look for that next time I have it on the ramps

1977 model year.
The pad probably reads 7T400 and then the date of assembly, somewhere on the pad should be the letter E because it's almost certainly a cast crank engine.

If it was a truck motor it'd be 7T400T, IIRC.

R.

I have a 1976 late production 3/4 pickup truck 4 speed 400 C.I. motor that had a forged steel crank and thin balancer that was drilled a bunch for the external balancing by the factory according to the trucks original owner
I had heard that the 400 stick shift motors all, pickup or cars, had forged steel cranks in them, this was the first one I've seen

All the 400 4-spd truck and cars that I've owed had forged cranks. Never seen a cast crank drilled for a pilot bushing.

Hopefully the bottom end is all good stuff from a truck and not a car. It runs great. I'll get it up on the ramps again and look at the casting numbers.