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Bored&Stroked · 12-03-2021, 02:50 PM

If it was mine, I'd make a steel blower drive flange - similar to a crankshaft blower pulley flange. The flange would have bolts to bolt on an aluminum pulley. This way you can change pulley sizes quite easily. The flange should have a centering ridge on it (like a crankshaft blower pulley).

12-03-2021, 02:50 PM	#12
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,070	Re: Aluminum pulley for M90 blower. If it was mine, I'd make a steel blower drive flange - similar to a crankshaft blower pulley flange. The flange would have bolts to bolt on an aluminum pulley. This way you can change pulley sizes quite easily. The flange should have a centering ridge on it (like a crankshaft blower pulley).