The engine tag you are referring to can be decoded as follows:
302 - engine displacement
C - factory (Cleveland)
70 - model year
?-K - year & month of production (could it be a 9-K = November 1969?)
299 B - engine code. Correct code for a Boss 302http://www.boss302.c...p?topic=72113.0
So it is the correct TAG for a 70 Boss 302 engine. But is it the correct engine? (many fake tags out there...)
To correctly ID your engine you also need the block casting number (hidden behind the starter). For a 70 Boss 302, it should read D0ZE-6015-B.
The block casting date is located not far and should be within a couple weeks to a month (prior) to the car build date.
Then to know if this particular engine is the one that was originally mounted to this car (matching engine), you'll find the VIN (or a portion of it with the last digits) stamped behind the block, on the driver's side.
The plate mounted to the right fender is your bucking tag. Lists all the car options. Some good info on this here:http://www.boss302.c...hp?topic=9827.0
Edited by guillaume69, 10 August 2017 - 03:50 AM.