What's the difference between a SB & BB power steering pump ?
I'm installing a 396 BB in place of my SB. Can I use my SB pump?
Thanks guys

I believe the pumps and the reservoirs themselves are identical, but the mounting bracket and pulley may be different. I guess I'm not much help here, but someone else will know for sure.

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70 & 1/2 RS
SB406 & M20 4spd
9" rear

70 Malibu 350/TH400

Gold member #103
Driveline Technician

Pump is the same but the reservoir is different. I belive that the big-block reservoir has different locations for the hose connections due to the limited space. You can get 'em repro for $120 (Ouch!)