Quote:
Originally Posted by TJ's GMC
Finally got those number for you.
Here are the engine numbers. 305E 49292I
And here is the vin number if that helps. 1502HF1643B
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Ok, comparing several V6's that I have your engine I.D. number is closest to the 305E that came out of my 68 KM-2500. The number off my 305E is 497570 and yours is 492921, what looks likes an "I" in there is actually a 1. I would have to say you have an early 68 engine produced in the fall of 1967. One more way to identify a 66 and earlier engine also possibly 67's have a ridge on the left side of the block about 3-4 inches left of the oil filter assembly, 68 and up do not have this, it may have been a mounting boss for industrial applications, check if your engine has it.