That could very well be the original engine in that car. The scheduled build date of the car is not always the actual date it was built. Sometimes it can be built up to a couple of weeks later. But the stamping on the engine is the actual assembly date.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
I don't regret the things I've done. I only regret the things I didn't do.
"Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
