Thanx guys.... I had someone notice something that I wouldn't have known about. There is a casting in the bell housing area that has 010 020. I'm told this makes it one of the high nickel content blocks. I wish the other numbers were on there. I'd really like to know what it came out of. It had a mfg casting number of B114 which I believe would make the motor from 2/11/74. Someone can correct me if I'm wrong though...
I'm open for suggestions if anybody knows another way to ID a block/heads...
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67 LWB GMC
250 inline w/4spd manual
Disc/power brake conversion
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