Re: Help! Identify i6 250 I bought!
In the meantime, I checked on the Casting Numbers from the Blocks.
The 3921968 is from 1964-1976, which covers the '69 Date on the Block.
The 366855 is from 1966-1984. If all the parts on the newer engine are original, I would say that the engine is closer to 1984. I can see some kind of Date Code behind the dipstick on the newer engine, but it is not real clear to me. I see what could be an 8 or 9 (possibly '78 or '79).
Bill
__________________
'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan
|