1985-1987 GM 5.0/5.7 F-BODY/GM TRUCK 3 PC UNDER DRIVE PULLEY KIT (ALUMINUM) 051 in Compression Thickness -

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

Air Induction System - Performance Air Intake System - Reusable Dry Filter - Plastic - Black - Toyota V8 - Toyota Fullsize Truck / Sequoia 2007-21 - Kit

Crate Engine - Drop-in-Ready - EFI - 302 Cubic Inch - 361 HP - Small Block Ford - Each

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

Float Bowl Sight Plugs - O-Ring - Clear Plastic - Holley Carburetors - Pair

1985-1987 GM 5.0/5.7 F-BODY/GM TRUCK 3 PC UNDER DRIVE PULLEY KIT (ALUMINUM) 051 in Compression Thickness -Install 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