ARP Flywheel Bolt Kit B-Series

ARP Flywheel Bolt Kit B-Series

The ARP 208-2802 Flywheel Bolt Kit is a premium upgrade for Honda DOHC B-Series engines. Manufactured from 8740 chromoly steel and heat-treated to deliver exceptional strength, these bolts are designed to withstand the high stress of racing and high-RPM applications. The larger-than-stock shank diameter improves flywheel register and reduces stress concentration, while the 12-point head ensures secure torqueing and easy installation.

Key Features:

• Thread size: M12 × 1.0

• Under-head length: 0.890″

• 12-point head design for optimal torqueing and clearance

• Larger shank diameter than OEM bolts for improved load distribution

• Material: 8740 chromoly, heat-treated to 190,000 psi tensile strength

• Finish: Black oxide coating

• Pack size: 8 bolts (complete kit with washers)

Uses / Applications:

• Replacement for OEM flywheel bolts in performance builds

• Designed for high-RPM, boosted, or racing environments where OEM bolts can stretch or fail

• Ensures secure flywheel retention under extreme stress

Engine Fitment:

• Honda B16A / B16B

• Honda B17A

• Honda B18A / B18B

• Honda B18C (GSR / Type R)

• Honda B20B / B20Z

Installation Note:
Always use ARP Ultra-Torque or equivalent fastener lubricant and follow ARP’s specified torque values during installation. Proper torque sequence is critical to ensure even clamping and long-term reliability.

Factory Part Number: 208-2802