66 L72 idler pulley

**mssl72** · #1 07-18-2025, 09:37 PM

The '65 396/425 and '66 427/425 Full-Size cars had the same idler pulley setup. Corvettes had a different bracket and I think the Corvette pulley was a smaller diameter. If I'm wrong somebody chime in.

**Too Many Projects** · #2 07-19-2025, 02:32 AM

Quote:

Originally Posted by mssl72

The '65 396/425 and '66 427/425 Full-Size cars had the same idler pulley setup. Corvettes had a different bracket and I think the Corvette pulley was a smaller diameter. If I'm wrong somebody chime in.

What about the '66 Chevelle L78 idler setup, same as full size, or different from the others also ?

**mssl72** · #3 07-23-2025, 09:05 PM

Yes, I'm pretty sure that was the same as full-size.

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