Originally Posted by gregsdart
I spotted one months ago but failed to write down where i saw it. I can go a bit smaller than 5 inch for max vacuum. I have a Moroso 3 vane pump.


Greg a buddy of mine ordered his 4.5” pulley from Butler Performance. I assume you’re referring to the pump pulley, and not the crank mandrel pulley.

https://butlerperformance.com/i-249...r-6-5-dia-v-belt-gz-vpp-401-402-404.html

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