Holley Replacement Damper

2009–Present Dodge 5.7L / 2011–Present Dodge 6.4L VVT Engines

97-363

Overview:

The Holley Replacement Damper is engineered specifically for mid-mount accessory drive systems on modern VVT-equipped engines. Designed to fit 2009 and newer 5.7L engines as well as 2011 and newer 6.4L engines, this damper serves as a direct replacement for Holley accessory drive kits 20-291, 20-291BK, 20-293, and 20-293BK. It ensures reliable operation of your engine’s accessory drive components by maintaining proper harmonic balance and reducing vibration.

Ideal for enthusiasts and professional installers looking to maintain or restore the performance and durability of their vehicle’s accessory drive system, this damper offers a precise fit and dependable function. It is a critical component for preserving engine longevity and smooth operation in high-demand applications.

Key Features:

Built to meet the exacting standards of Holley’s accessory drive systems, this replacement damper offers the following key features:

• Direct replacement for Holley mid-mount accessory drive kits 20-291, 20-291BK, 20-293, and 20-293BK
• Compatible with Variable Valve Timing (VVT) engines for 5.7L (2009+) and 6.4L (2011+) applications
• Overall height of 4.76 inches, ensuring proper fitment and clearance
• Precision balanced to reduce engine vibration and harmonic stress
• Durable construction designed to withstand high RPM and long-term use
• Maintains accessory drive belt alignment and tension for optimal performance
• OEM-quality replacement part engineered for seamless integration

Construction & Design:

The Holley Replacement Damper is manufactured with high-grade materials selected for strength and durability under demanding engine conditions. Its robust design ensures resistance to wear and deformation caused by engine vibrations and accessory loads. Precision balancing during production minimizes harmonic vibrations, protecting the crankshaft and accessory components from premature failure. The damper’s dimensions and mounting points are engineered to match the original Holley accessory drive kits, guaranteeing a perfect fit without the need for modifications.

Installation & Fitment:

Installation of the Holley Replacement Damper is straightforward for anyone familiar with accessory drive systems. It is designed as a direct bolt-on replacement for Holley kits 20-291, 20-291BK, 20-293, and 20-293BK, eliminating the need for custom adjustments or additional parts. This damper fits 2009 and newer 5.7L engines as well as 2011 and newer 6.4L VVT engines, making it an ideal service part for maintaining or repairing these specific setups. Proper installation ensures continued accessory drive system reliability and engine smoothness.

What's Included:

• One Holley Replacement Damper (Part #97-363)

Ideal For:

This replacement damper is perfect for automotive enthusiasts, mechanics, and restoration specialists working on Dodge vehicles equipped with 5.7L or 6.4L VVT engines from 2009 and 2011 onward, respectively. It is especially suited for those maintaining or upgrading Holley mid-mount accessory drive systems, ensuring continued performance and reliability without compromise.

Holley is a cornerstone name in performance, spanning everything from classic carburetion to modern EFI, fuel systems, and race-ready supporting components. It’s also home to a roster of iconic sub-brands across ignition, exhaust, and drivetrain—making Holley a one-stop ecosystem for builders chasing better drivability, more power, and proven track heritage.