trying to get to the bottom of what year engine I've got. So far there are several clues but we haven't been able to crack the code. -We have blue paint. It seems to be lighter blue indicating "turquoise", but it's so faded and rusty it's hard to tell for sure. -We have what we think is a '68-'69 timing cover/water pump (which came with the engine from the junk yard. -We have the imprint on the front of the block (from behind the pow.steering pump): M318R 06 13 1947. -We have "2536030" and "1283" cast onto the driver's side of the block -"1283 again on the passenger side. But, no obvious day*month*year marking. This motor was installed onto a 1968 Fury sometime in the late 80's/early 90's from a junk yard. I had to swap my intake manifold at the time in order for things to work.