Some MORE info to digest. I have an early '70s 250. I put the power steering from an integral head engine on it, along with the HEI. On that particular engine it had double pulleys. also note that the pulley flange on the water pump was in a different place, so I had to use the water pump, crank damper / pulley, power steering pulley, water pump pulley & p/s pump. The brackets as already noted did not fit but that's what they make metal working tools for. Fits fine now!