Running casting numbers on parts trucks and found this one:

3921968

Checking it against the casting numbers list it comes up as a 64-76 chev/olds 216.

They made a 216 in this era? I've never heard of it. Looks like the 194-230-250-292 series.

What's the scoop on this one?

1953 2dr 150 with '59 261
1964 Bel Air with stock ~69 230
1961 Biscayne with stuck 235
tore up '53 235