Chevy V8 Chrome Steel Water Pump Pulley Bolt Set

This is a set of 4 chrome steel Allen-head bolts designed for Chevrolet V8 water pump pulley applications using 5/16-24 threaded pulley bolts. Each bolt measures 3/4" in thread length, matched to common Chevy V8 water pump pulley mounting requirements.

This bolt set is a common fix for missing, worn, stripped, or mismatched water pump pulley hardware on small block and big block Chevy V8 builds, restorations, and engine swaps. The Allen-head design allows for clean tool access in tight front accessory drive spaces, and the chrome finish keeps hardware looking finished alongside polished or chrome accessory drive components.

Always verify bolt thread size and under-head length against your specific pulley and water pump hub before installation, since thread specs can vary by water pump and pulley combination. This set includes hardware only — it does not include a pulley or water pump. Sold as a set of 4.

 

Chrome Allen-Head Bolts Sized for Common Chevy V8 Pulley Threads
This set of 4 chrome steel bolts uses an Allen-head design with a 5/16-24 thread and 3/4" thread length, sized to match common Chevrolet V8 water pump pulley mounting requirements.

Replaces Worn or Mismatched Hardware to Keep Belt Drive Secure
Stripped, rusted, or mismatched pulley bolts can lead to a loose or misaligned pulley, affecting belt tracking and accessory drive performance. This chrome bolt set gives you a clean, correctly sized replacement to keep your water pump pulley securely mounted.

COMPATIBLE WITH
CHEVROLET V8 WATER PUMP PULLEYS
• Chevrolet Small Block V8 water pump pulleys
• Chevrolet Big Block V8 water pump pulleys
• Short and long water pump applications using compatible pulleys
• Steel and aluminum water pump pulleys with 5/16"-24 threaded mounting holes
• Street, performance, restoration, and custom engine builds

COMMON APPLICATIONS
Water pump pulley installation
Engine rebuilds
Cooling system restoration
Street rods
Hot rods
Muscle cars
Custom engine builds
Small Block and Big Block Chevrolet accessory drive systems

NOTES
• Fits Chevrolet Small Block and Big Block V8 water pump pulleys using 5/16"-24 x 3/4" mounting bolts.
• Designed for water pump pulley installation only.
• Compatible with many short and long water pump applications using the correct pulley.
• Verify thread size, bolt length, pulley style, and water pump configuration before installation.
• Not compatible with LS- or LT-series engines.
• Not compatible with pulleys requiring countersunk or OEM-style hex fasteners.

Specifications
Fastener Style: Bolt
Fastener Material: Steel
Fastener Finish: Chrome
Fastener Nut Style: Allen
Thread Length: 3/4"
Thread Size: 5/16" - 24
Quantity: Set Of 4