at one time I had one of those twin piston compressors adn also havd a serpentine clutch from a york. I pulled the chrysler clutch and put on the serpentine clutch from the york and it seeemed to fit as far as the taper was. I never finished the swap as I sold the motor that had the serpentine pulleys. I do recall it didnt seem like it was going to need much work to make the magnetics work. I would sugest puling a cluych off of another york adn seein what it was like.
Also does that motor have a 5 or 6 groove pulleys or what ever. I have (or at least had
)the part numbers from kenworth for serpentine pulleys that work on gm stuff. Just let me know and I will look.
Jeff