the badge on the top of my motor on driver side says B 440.under that,it says 3112 hp.

is this right? i have been reading and 440's say RB. mine only says B

 

I'm not into all the various codes on blocks, but there is lots of places on the www to Google them up. I can ASSURE you that you have an RB engine. There is no such thing as a 440 B block

The only B/ RB anomaly I know of is OLDER 383 and I think 361. One or both of the two for only two years I think, were made in BOTH B and RB.

No 413, 426, or 440s were ever B blocks

No 400s were ever RB blocks.

ANY RB block has the type of ID pad your 440 has, IE the pad to the driver side of the distributor, parallel to ground level, and cast "into" the sealing rail for the vally

ANY B engine has the ID pad over on the passenger side of the block, down by the water pump at an angle.

 

that badge was put there when it was rebuilt

 

You have the rare 3,112 horsepower B 440 block that everyone is looking for!

I kid. Yea, it's an RB.