GM Performance 12588670 Timing Chain Dampener for LS2 LS3 LS7 Engines

The GM Performance 12588670 is a genuine OEM timing chain dampener designed for LS2 and newer GM LS-Series engines. This critical engine component, also known as a timing chain guide or tensioner, helps maintain proper timing chain alignment and reduces excessive slack to prevent chain whip, rattle, and premature wear.

Key Features:

• Genuine GM OEM replacement part for LS2, LS3, LS7, L92, and L76 engines
• Features 1.762-inch bolt pattern for proper Gen IV LS engine fitment
• Black plastic construction designed for use with standard oil pumps
• Helps dampen chain whip during rapid deceleration from high RPM
• Extends timing chain life by maintaining consistent tension
• Prevents timing chain noise, stretch, and component wear
• Includes mounting hardware for complete installation

Application Notes: This dampener is designed for Gen IV LS engines including LS2, LS3, LS7, L92, and L76 applications. It will not fit LS1 and LS6 blocks without modification or when fitted with discontinued part number 88958607. Can be adapted for use on other LS engines with TFS-30675600 adapter bracket. Ideal for timing chain service, camshaft upgrades, engine rebuilds, and LS swap applications.

Specifications: Plastic construction, black finish, 0.2 lbs weight, dimensions approximately 4.3" L x 2.3" W x 1.9" H.