Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] but they are all made

but they are all made from aerospace-grade aluminum

The Speedmaster quick spool system is a pressure relief system for the Turbo 400

These pans use the stock pickup

making them a great choice for your disc brake conversion

This construction ensures superior strength

Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] but they are all madeSpeedmaster's 4 inch polished idler pulley is built for supercharger systems, delivering consistent belt tension and reliable performance. Machined from durable 6061 billet aluminum and heat treated for long lasting strength, it features two sealed single row ball bearings to ensure smooth operation under high loads. The pulley can be flipped to adjust spacing by 1 inch, making belt alignment straight forward when blower snout lengths change with