Fo 121r
chief153
04-27-2010, 05:35 PM
I hope someone might be able to help me with this SBC block number. All I can find stamped on the id pad is FO 121R, this is a two bolt main block. I believe it to the in the late 60`s to early 70`s era. Can anyone tell me what I have?
maxwedge
04-28-2010, 08:17 AM
No casting number on the side or the block?
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