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phaedrus · 03-22-2021, 05:23 PM

I can add a confit to the list and have a question about a different config.

Both my configurations are with the stock LT4 Blower.

I’m currently running a 2.3” Upper and a 9.1” Lower and I use Gates Green Belt pn K80839HD. This maybe a bit tighter than needed, but I’ve had some belt slip issues and it fits without a ton of effort.

I’m upgrading the lower to 9.45” keeping the upper the same size. What size belt (ideally a Gates pn) do I need for this slightly larger pulley?

TIA, helpful thread!

03-22-2021, 05:23 PM	#15
phaedrus Drives: 2018 Camaro ZL1 Convertible, M6 Join Date: Feb 2018 Location: San Diego, CA Posts: 37 View My Garage	Stock blower with 2.3” Upper and 9.1” Lower I can add a confit to the list and have a question about a different config. Both my configurations are with the stock LT4 Blower. I’m currently running a 2.3” Upper and a 9.1” Lower and I use Gates Green Belt pn K80839HD. This maybe a bit tighter than needed, but I’ve had some belt slip issues and it fits without a ton of effort. I’m upgrading the lower to 9.45” keeping the upper the same size. What size belt (ideally a Gates pn) do I need for this slightly larger pulley? TIA, helpful thread!