SB 727 swap Motor Home BB housing

[BoomerSoonerVA]

I have a 72 SB 727 off of a 318 E body and was wondering what it would take to convert it to a BB 727 E body for a 440? I have a 79 BB empty mobile home bell housing I can use.

 

[Xcudame]

Assuming you have an empty BB 727 case, everything internal from the SB 727 (328) can be used in the BB case. Keep in mind, a lot (not all) BB 727 had 4 clutch (sometimes 5!) discs and 4 Pinion planetary gears where the SB 727 could only 3 clutches and 3 pinion planetary gears. In short, most of the BB 727s were beefier than the small blocks. But all 727s are better than anything made by GM or Ford!!

 

[BoomerSoonerVA]

Assuming you have an empty BB 727 case, everything internal from the SB 727 (328) can be used in the BB case. Keep in mind, a lot (not all) BB 727 had 4 clutch (sometimes 5!) discs and 4 Pinion planetary gears where the SB 727 could only 3 clutches and 3 pinion planetary gears. In short, most of the BB 727s were beefier than the small blocks. But all 727s are better than anything made by GM or Ford!!

 

[BoomerSoonerVA]

This is the case I’m thinking of using

 

[Xcudame]

Yup, that will work. You can use everything from the SB 727 to complete the BB 727. Pick up a Master Transmission Kit that has new gaskets, seals, rings, clutches and steels. Should work fine behind a mild 440.

 

[BoomerSoonerVA]

thank you