not just for racks and pinions, HDK has used this pump from Speedway Motors on small blocks, big blocks and Hemi installs. The GM pressure is compatible with the late 60's 70's factory P/S pumps. I often add a adjustable valve to dial in the pressure for the best feel
Aluminum Power Steering Pumps w/ Reservoir
Heidts PS-101 Adjustable Power Steering Valve
BTW...HDK makes brackets in aluminum for small, big block and the 66-72 Stage II Hemi applications.
