[3macs1]

They are not that hard to locate. I sold two on e-bay in the past 3 months for like 120.00 complete with the fan and I have seen others listed since. Both of mine were off 69 427 425hp engines.The clutch units on these 69's other than the part number were the exact size as the ones on my 70 chevelles one had a 4 core and one a 3 but the same clutch unit.