Alt #:

GM 305/350 Truck BBK 3-Pc Underdrive Aluminum Pulley Kit, 1985-1987

0% of 100
0  Reviews Add Your Review
$229.99 Each
Product Details
High-Performance Upgrade Underdrive Pulley Kit Pulle... View More
Availability: Ships Direct From Manufacturer
  • High-Performance Upgrade
  • Underdrive Pulley Kit
  • Pulley Style: Serpentine Pulley Set Style: Performance Ratio
  • Polished Aluminum Finish
  • Crankshaft/Alternator Pulley Grooves: 6-Groove Serpentine
  • Includes: Crankshaft Pulley, Alternator Pulley, Waterpump Pulley
  • Add 8-15 HP
  • For 305/350 F-Body & GM trucks


A 305/350 Truck aluminum pulley kit makes a great modification for your 1985, 1986, or 1987 Truck. This BBK pulley kit is made from quality aluminum alloy and is designed as a direct bolt-on replacement for the current pulleys, while also still retaining full cooling and charging characteristics. This hand polished aluminum pulley kit part provides an average of 8-15 added HP to your already high performing 305/350 Truck. The kit includes a waterpump pulley, alternator pulley, and a crankshaft pulley. A traditional mod is to underdrive the engine water pump. This effectively reduces the amount of HP consumed by the water pump and allows more power to accelerate your classic car. By making this addition, your car should experience much more crankshaft and wheel HP. The alternator pulley is responsible for transferring mechanical power from an engine crankshaft to the alternator via a belt. If you're a serious car enthusiasts wanting the most out of your mod, crank pulleys are a crucial part of your overhaul. The crankshaft is a critical component in your vehicles power distribution. Also called a harmonic balance wheel, this part connects to the crank shaft and drives the cars wheels by transmitting torque through the pulley system to other important elements of your Truck. When you're in the mood to mod your 1985, 1986, or 1987 Truck, invest in a BBK aluminum pulley kit. Available at Eckler's Classic Chevy Trucks today!

  • 1985-1987 Monte Carlo V8
  • 1985-1987 Chevy Truck 5.0 or 5.7

GM Truck Underdrive Pulley Kit, 1985-1987

Combined Cancer/Birth Defect
WARNING This product can expose you to chemicals including Cadmium which is known to the State of California to cause cancer on birth defects or other reproductive harm. For more information, visit
More Information
Base Part Number 332535
Alt. # 61-12475
Eck OEM Number 1598
Brand BBK Performance

Products from the same brand

Make / Model Series Body Notes Year
Make / Model Chevrolet Series Body Notes Year 1987
Make / Model Chevrolet Truck Series Body Notes Year 1985, 1986
Make / Model Chevrolet Truck Series Body Notes GM Truck Year 1987
Add a Review
You're reviewing:GM 305/350 Truck BBK 3-Pc Underdrive Aluminum Pulley Kit, 1985-1987
Your Rating