The Story
Upgrade your GM Gen III/IV LS-based 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 6.325 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
360 deg. timing marks simplify ignition setup, while the 6.325 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
GM LS SERIES V8 ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, L33, LC9, LH6, LY5, LMG)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)
• 6.2L / 376 in³ (LS2, LS3, L92, L99, LSA)
• 7.0L / 427 in³ (LS7)
COMMON VEHICLE APPLICATIONS
Chevrolet Silverado / GMC Sierra (LS equipped)
Chevrolet Camaro / Corvette (LS equipped)
Chevrolet Tahoe / Suburban / Yukon (LS equipped)
Pontiac GTO / G8 (LS equipped)
LS swap, street/strip, and performance builds
NOTES
Designed for GM Gen III/IV LS-based engine platforms.
Verify crankshaft snout, pulley groove count, belt drive, and accessory spacing before installation.
Not compatible with Gen I Small Block Chevy, Gen V LT, or Big Block Chevy engines.
| Bolt And Washer Included | Yes |
| Construction | Elastomer |
| Drive Belt Type | Serpentine |
| Engine Balance | Internal |
| Grade Type | Performance |
| Harmonic Balancer Color | Black |
| Harmonic Balancer Finish | Black Anodized |
| Harmonic Balancer Material | Steel |
| Mounting Hole Quantity | 3 |
| Outside Diameter | 6.325 in. |
| Outside Diameter | 6.325 in. |
| Pulley Groove Quantity | 0 |
| SFI Rating | SFI 18.1 |
| Timing Marks | 360 deg. |
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.
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 GM Gen III/IV LS-based 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 6.325 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
360 deg. timing marks simplify ignition setup, while the 6.325 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
GM LS SERIES V8 ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, L33, LC9, LH6, LY5, LMG)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)
• 6.2L / 376 in³ (LS2, LS3, L92, L99, LSA)
• 7.0L / 427 in³ (LS7)
COMMON VEHICLE APPLICATIONS
Chevrolet Silverado / GMC Sierra (LS equipped)
Chevrolet Camaro / Corvette (LS equipped)
Chevrolet Tahoe / Suburban / Yukon (LS equipped)
Pontiac GTO / G8 (LS equipped)
LS swap, street/strip, and performance builds
NOTES
Designed for GM Gen III/IV LS-based engine platforms.
Verify crankshaft snout, pulley groove count, belt drive, and accessory spacing before installation.
Not compatible with Gen I Small Block Chevy, Gen V LT, or Big Block Chevy engines.
| Bolt And Washer Included | Yes |
| Construction | Elastomer |
| Drive Belt Type | Serpentine |
| Engine Balance | Internal |
| Grade Type | Performance |
| Harmonic Balancer Color | Black |
| Harmonic Balancer Finish | Black Anodized |
| Harmonic Balancer Material | Steel |
| Mounting Hole Quantity | 3 |
| Outside Diameter | 6.325 in. |
| Outside Diameter | 6.325 in. |
| Pulley Groove Quantity | 0 |
| SFI Rating | SFI 18.1 |
| Timing Marks | 360 deg. |
