Whats an RB 440?
Raised block?
Thanks so the intakes are not compatible from a 383 to 440 and the 440 requires a “RB” intake?Mopar 340,360,383, and 400 were all "B" engines, or low deck. 413,426, and 440 were all "RB" meaning raised "B" engines, due to the taller blocks, requiring a different intake and distributor.
And DistributorThanks so the intakes are not compatible from a 383 to 440 and the 440 requires a “RB” intake?
Some early 383s were RB blocksMopar 350,361,383, and 400 were all "B" engines, or low deck. 413,426, and 440 were all "RB" meaning raised "B" engines, due to the taller blocks, requiring a different intake and distributor.
Your motor home replacement had to be a RB block not a B block or else the intake would not fit. Now to the longer crank. Thats a good one.My 70 r/t came with a RB engine. I replaced it with a motor 75 home b block. I used all the intake and exhaust manifolds no problem. I think all the 440 blocks are the same. The crank is longer on RB blocks?
I should have said RB engines have a longer Stoke.Your motor home replacement had to be a RB block not a B block or else the intake would not fit. Now to the longer crank. Thats a good one.