engine ID problem

[chargen86]

can anyone help me decode my engine
from my 68 rt
i no its not the original motor on the front pad it say  F440 and has a sideways B on top of the 0 of the 440
on the bottom line it says 1   14   

on the side below the heads it says 2536430-5 and the date is 11-13-69

and on the bottom of the block near the sump it says OG-250248
some of the letters may be wrong as the motor is still in
does any of this information tell you what car it came out of

and does it really matter if the engine is not matching?
thanks for your time

[Steve P.]

If you are happy with the motor that is under your hood, that is all that matters. It is a 440. 

[John_Kunkel]

F is the year code for '70, B is the code for .010" undersized rod and main bearings, 1 14 is the build date January 14.

0G250248 is the partial VIN of a '70 car built at the St. Louis plant. (Should match the last 8 characters of the dash VIN)