69 Z Smog Pump Pulley Diameter

Camaro Research Group Discussion > Originality

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KurtS:
Anyone have an original smog pump pulley from a 69 Z that can measure the diameter of the pulley? Pulley 3932458.

Thanks!

rare396bronze:
5 3/4 inches, Hope this helps!

KurtS:
Thanks! Is it a little over 5 3/4? I only ask because 5.8 is a common size when I look at other smog pulleys.

HOT3O2:
Kurt, I just measured mine with a micrometer and it right at 5.8.

rare396bronze:
Just checked again 5 3/4 maybe one small line over on tape measure. Original gm not repo.

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