LT4 DRYSUMP ATI DAMPNER WITH OVERDRIVE RING holley 5" 90 degree elbow and

5" 90 degree elbow and not the 4" that comes on in the L86 Truck package

The additional air flow does mean tuning for the intake is required to avoid engine damage

also comes with bracket and harness

with huge improvements across the entire RPM band

This pulley and hub is required and not included

LT4 DRYSUMP ATI DAMPNER WITH OVERDRIVE RING holley 5" 90 degree elbow andSupercharger Pulleys, 8 Groove, 9. 602 in. Diameter, Dry Sump, Chevrolet, Cadillac, LT4 ATI serpentine supercharger pulleys drive your request for boost! Their selection includes a choice of overdrive models smaller pulleys to run your blower faster for more boost and power. Available in multiple configurations to suit your project.