1985-1987 GM 5.0/5.7 F-BODY/GM TRUCK 3 PC UNDER DRIVE PULLEY KIT (ALUMINUM) A single large discharge orifice

A single large discharge orifice is included

Brake Rotor - Passenger Side - 14 in OD - 1

Throttle Linkage - 23 in Long Rod - Hardware / Rod Ends Included - Aluminum - Natural - Kit

Ignition Control Module - High Performance - Accel 52 Series - Each

051 in Compression Thickness - Multi-Layer Stainless Steel - GM GenV LT-Series - Each

1985-1987 GM 5.0/5.7 F-BODY/GM TRUCK 3 PC UNDER DRIVE PULLEY KIT (ALUMINUM) A single large discharge orificeInstall a set of BBK performance underdrive pulleys and see an average of 8 15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet