P1 | Chevrolet Big Block Balancer Bolt Kit – S220 Series – Black Oxide Finish

P1 Chevrolet Big Block Balancer Bolt Kit – S220 Series – Black Oxide Finish

Part Number: K001-BB01S

Secure your harmonic balancer with confidence using the P1 Chevrolet Big Block Balancer Bolt Kit, engineered for high-performance Big Block Chevy applications where reliable crankshaft retention is critical.

Manufactured from premium P1 S220 Series material, this heavy-duty balancer bolt is designed to provide consistent clamping force and dependable performance in demanding street, drag racing and competition environments.

The bolt features a 1/2"-20 thread, 1.55" under-head length, and a large 15/16" hex head for secure tool engagement during installation. Supplied with a matching washer and P1 assembly lubricant, the kit provides the components required for accurate and repeatable installation.

Finished in durable black oxide, the bolt offers corrosion resistance while maintaining a clean, professional motorsport appearance.

Features & Benefits

• Designed for Chevrolet Big Block applications
• Manufactured from premium P1 S220 Series material
• Provides strong and consistent harmonic balancer retention
• Heavy-duty upgrade over standard production hardware
• 15/16" hex head provides positive tool engagement
• Precision washer helps distribute clamping load evenly
• Supplied with assembly lubricant for accurate installation
• Black oxide finish for corrosion resistance
• Suitable for high-performance street and race engines
• Precision-manufactured for reliable fit and durability

Technical Specifications

• Product Type: Harmonic Balancer Bolt Kit
• Application: Chevrolet Big Block
• Thread Size: 1/2"-20
• Under-Head Length: 1.55"
• Wrench Size: 15/16"
• Material: P1 S220 Series
• Finish: Black Oxide

What’s Included

• 1 × P1 S220 Series balancer bolt
• 1 × Precision washer
• P1 assembly lubricant

Applications

• Chevrolet Big Block V8 engines
• High-performance street engines
• Drag racing applications
• Naturally aspirated combinations
• Supercharged applications
• Turbocharged applications
• Nitrous-assisted engines
• Competition and motorsport builds

Important Installation Notes

Correct balancer bolt torque and lubrication are critical to achieving the intended clamping force. Always follow the installation and torque specifications supplied by P1 or your engine builder.

Ensure the crankshaft threads are clean, undamaged and suitable for the specified 1/2"-20 fastener before installation.

Why Choose P1 Fasteners?

P1 fasteners are designed for professional engine builders, racers and performance enthusiasts who demand dependable strength and consistent clamping force from critical engine hardware.

The S220 Series provides a high-strength fastening solution for demanding performance applications, helping maintain component retention under high RPM, vibration and repeated load cycles.

Why Buy From Prime Speedworks

Prime Speedworks supplies P1 performance fasteners to racers, workshops and engine builders throughout Australia.

From head and main stud kits through to balancer bolts, flexplate hardware and specialty engine fasteners, Prime Speedworks can help match the correct P1 hardware to your engine combination and performance requirements.