Damper Installation Instructions [PDF Format].
Damper Hub Honing Instructions [PDF Format].
Harmonic Damper Installation YouTube Video
6.5 Inch Ford Y-Block Thunderbird Hub 4-Bolt Harmonic Damper #221
Y-Block Ford Harmonic Balancer with Internal Balanced with extended length hub for T-Bird applications. Exceeds SFI 18.1 specifications and features an all aluminum case design for light weight, stress-proof steel hub and 1040 steel inertia rings for durability. Wet clutch friction design style with precision machined harmonic dampening for street and race engines. Uses 4-Bolt Late Model SBF Pulley Pattern.
Note: This damper does not retain stock accessory belt offsets. Please contact Eaton Balancing (254-857-3339) for further details.
- Outer Diameter: 6.5″
- Weight: 8.5 lbs
- Thunderbird Length Hub
- 4 Bolt Late Model Pulley Pattern
- Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
2 in stock