The Story
Upgrade your early Ford Small Block Windsor engines with a SFI-certified performance harmonic balancer designed to control crankshaft vibration and reduce harmful harmonics across the RPM range. Built for street and performance applications, this 6.440 in. balancer improves engine stability, durability, and overall reliability.
Vibration Control & Engine Protection
Designed to dampen crankshaft harmonics, this balancer helps reduce engine wear and improve long-term reliability—especially in performance and high-RPM applications.
Durable Performance Construction
Steel and elastomer construction provides dependable damping and strength, while SFI certification supports high-performance and racing applications.
Easy Timing & Installation
60 deg. Before Top Dead Center To 0 deg. Top Dead Center timing marks simplify ignition setup, while the 6.440 in. diameter supports proper accessory alignment and straightforward installation.
Built for Street & Performance Applications
Ideal for performance rebuilds, restorations, and upgraded engine combinations where crankshaft stability and consistent operation are critical.
COMPATIBLE WITH
FORD SMALL BLOCK WINDSOR V8
• 3.6L / 221 in³
• 4.3L / 260 in³
• 4.7L / 289 in³
• 5.0L / 302 in³
• 5.8L / 351 in³ (351W Windsor)
• 5.0L / 302 in³ Boss applications (verify application)
COMMON VEHICLE APPLICATIONS
Ford Mustang (Small Block Windsor equipped)
Ford F-Series (Small Block Windsor equipped)
Ford Bronco (Small Block Windsor equipped)
Ford Falcon / Fairlane (Small Block Windsor equipped)
Mercury Cougar (Small Block Windsor equipped)
NOTES
Designed for early Ford Small Block Windsor applications.
Fits early small block applications with three or four crankshaft pulley bolt holes.
Verify engine balance, pulley alignment, and timing pointer location before installation.
Will not fit 351C Cleveland, 351M, 400M, FE, or 385-series Big Block Ford engines.
| Bolt And Washer Included | No |
| Construction | Elastomer |
| Damper Color | Black |
| Damper Finish | Satin |
| Damper Material | Steel |
| Engine Balance | Internal |
| Grade Type | Performance |
| Mounting Hole Quantity | 3 |
| Outside Diameter | 6.440 in. |
| Pulley Groove Quantity | 0 |
| SFI Rating | SFI 18.1 |
| Timing Marks | 60 deg. Before Top Dead Center To 0 deg. Top Dead Center |
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Upgrade your early Ford Small Block Windsor engines with a SFI-certified performance harmonic balancer designed to control crankshaft vibration and reduce harmful harmonics across the RPM range. Built for street and performance applications, this 6.440 in. balancer improves engine stability, durability, and overall reliability.
Vibration Control & Engine Protection
Designed to dampen crankshaft harmonics, this balancer helps reduce engine wear and improve long-term reliability—especially in performance and high-RPM applications.
Durable Performance Construction
Steel and elastomer construction provides dependable damping and strength, while SFI certification supports high-performance and racing applications.
Easy Timing & Installation
60 deg. Before Top Dead Center To 0 deg. Top Dead Center timing marks simplify ignition setup, while the 6.440 in. diameter supports proper accessory alignment and straightforward installation.
Built for Street & Performance Applications
Ideal for performance rebuilds, restorations, and upgraded engine combinations where crankshaft stability and consistent operation are critical.
COMPATIBLE WITH
FORD SMALL BLOCK WINDSOR V8
• 3.6L / 221 in³
• 4.3L / 260 in³
• 4.7L / 289 in³
• 5.0L / 302 in³
• 5.8L / 351 in³ (351W Windsor)
• 5.0L / 302 in³ Boss applications (verify application)
COMMON VEHICLE APPLICATIONS
Ford Mustang (Small Block Windsor equipped)
Ford F-Series (Small Block Windsor equipped)
Ford Bronco (Small Block Windsor equipped)
Ford Falcon / Fairlane (Small Block Windsor equipped)
Mercury Cougar (Small Block Windsor equipped)
NOTES
Designed for early Ford Small Block Windsor applications.
Fits early small block applications with three or four crankshaft pulley bolt holes.
Verify engine balance, pulley alignment, and timing pointer location before installation.
Will not fit 351C Cleveland, 351M, 400M, FE, or 385-series Big Block Ford engines.
| Bolt And Washer Included | No |
| Construction | Elastomer |
| Damper Color | Black |
| Damper Finish | Satin |
| Damper Material | Steel |
| Engine Balance | Internal |
| Grade Type | Performance |
| Mounting Hole Quantity | 3 |
| Outside Diameter | 6.440 in. |
| Pulley Groove Quantity | 0 |
| SFI Rating | SFI 18.1 |
| Timing Marks | 60 deg. Before Top Dead Center To 0 deg. Top Dead Center |
