[boltupal]

Extra engine that cam

e with barn find. I thought it was a 1971 truck engine. But the Suffix numbers dont add up.

 

[25C 70]

My guess would be a 1967 396-325 406 casting from a Canadian built full size.

 

[Dean]

66, 67,68, Chevrolet 396 - 325 HP had IN suffix

 

[boltupal]

Wow ,it came out of a 71 suburban. The starter was heavy duty iron nose I put in my chevelle.