Big Block Chevy V-Belt Kit (3V Crank, 1V WP)

Upgrade your classic Chevy Big Block with this high-performance Aluminum V-Belt Pulley Kit, precision-engineered for engines running a long water pump (7.287" standard rotation). Designed to replace factory steel V-belt or serpentine pulleys, this triple-groove system enhances both style and efficiency under the hood.

This Billet Aluminum V-Belt Kit features a triple-groove 7” crank pulley and a high-flow ratio 1V water pump pulley, optimizing water circulation and maintaining cooler engine temperatures—ideal for performance builds, restorations, or street rods. The clear powder coat finish provides long-lasting corrosion protection and a brilliant polished appearance without constant maintenance.

Each component is CNC machined from solid billet aluminum for perfect balance, durability, and reduced rotational mass. Backed by a lifetime warranty, this kit ensures long-term reliability and factory-level alignment for smooth belt tracking and zero slippage.

Application:

Chevy Big Block

7.287" Standard Rotation Long Water Pump

Kit Includes:

7141 3 Groove Crank Pulley (7")

6152 1 Groove Water Pump Pulley (6 1/4")

137   1 Groove Alternator Pulley (2 11/16")

All Mounting Hardware

Optional Keyway Power-Steering Pulley : 2V 521

Optional Press-Fit Power-Steering Pulley : 2V 520 

Optional Alternator Fan Available : 221

Optional Water Pump Pulley Cover Available : 314