Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] and the nipple pilot prevents

and the nipple pilot prevents damage to the inner tube

Compatible with most automatic transmission kick-down cables

This Speedmaster design features tubes instead of discharge nozzles that provide a more consistent fuel flow

This one-piece billet steel flexplate offers the strongest gear teeth

These Speedmaster gasket kit sets include premium-quality head gaskets

Billet Supercharger 4" Idler Pulley Universal [Suits 3" Wide Belt] and the nipple pilot preventsSpeedmaster'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