B/RB use the same TC and bell on the tranz

the wider part of a B/RB should be the heads not the tranz bell or starter location

they use the same tranz and starter and TC

well thats what I got from a 383 and a 440 in an A-body..wider at the VC not the block and tranz

guess it depaends on who is bending pipes and who has been out at lunch and bending pipes at the header factory

I have had the same part # and 2 diff header pipe shapes bends...one size to fit all kinda thing they did list them to fit 2x and 4x truck though they did not fit the 2x truck on the drive side