gbledsoe3

Researching I think this is correct but I value you're opinions.

A/C and PS application on 455 motor.

71 Supreme
water pump pulley code KK
crankshaft pulley code KC
power steering pulley code KH


Milodon 16285 6.0"

Mr Shifty Sidney

My notes indicate you will need a KF water pump pulley. KK pulley is a 70 pulley and is designed to be used with the 5.5" 70 waterpump. The 70 5.5" water pump uses different size radiator hoses than the 71/72 5.5" water pump. Looks like you have the 6" pump which is correct for your application. I did not verify the part number. The crankshaft and power steering pulleys you listed are correct. Hope this helps.

​​​​​​​Don W

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gbledsoe3

This was the diagram I was referencing from the 1971 Assembly manual.

KK - Water Pump Pulley
KC - Crankshaft Pulley
KH - Power Steering Pump Pulley

Mr Shifty Sidney

Looks like you have the correct information. I was going from notes that I had on my phone. Sorry for the bad info.

​​​​​​​Don W

gbledsoe3

What I don't know is which replacement water pump to buy for these pulleys? Summit Racing has the Milodon one:

Brand:Milodon
Manufacturer's Part Number:16285
Part Type:Water Pumps, Mechanical
Product Line:Milodon Mechanical Water Pumps
Summit Racing Part Number:MIL-16285

UPC: 806621162857
Pump Flow: High-volume
Pump Material: Aluminum
Pump Finish: Natural
Water Pump Rotation: Clockwise
Pilot Diameter (in): 0.625 in.
Water Pump Inlet Diameter (in): 1.875 in.
Quantity: Sold individually.
Notes: 6.000 in. water pump length. The dimensions in the image do not account for any gaskets or the backing plate.

cdrod

gbledoe3:
I used a FlowKooler pump #1775 on my 375cid small block build. It is all aluminum construction like the Milodon pump with a 6" hub height, and my pulleys all line up perfectly. Summit has them for $116 with free shipping. Here's a link:
https://www.flowkoolerwaterpumps.com...duct_info.html