looking for a 3 bolt crank pulley grooved for A/C belt

[74on35s]

Like it says. I want to install a York compressor for OBA, but I can't find the correct crank pulley to make it work.
Anyone parting an older 360 that might have one?

[Ibby]

Can you run the York from a different pulley? I've installed a few and have used several different locations to drive the York. Even made one fit into the serpentine system on my 2000 XJ.

[tufcj]

The 3 bolt engines used a single A/C belt that it shared with the PS (if it had it). It was also a wider belt than the alternator used. These only had a 2 groove crank pulley. I've never seen a 3 groove, 3 bolt pulley.

The later A/C used a dual belt, shared with the alternator. These had a 3 groove, 4 bolt bottom pulley.

You may need to change to a 4 bolt harmonic, along with the matching pulleys and water pump to make the later A/C work.

Bob
tufcj

[jeepsr4ever]

If its 1974 or newer you can easily find the pullies. If its older we can make them but like it was mentioned you will need crank, water and alternator. 3 on the crank, 3 on the water and 2 on the alternator to get that AC to operate.