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MSD components are the industry standard for performance ignition systems
Precision-cast from A356-T6 aluminum
In-channel installation using pre-applied 3M adhesive tape
A worn idler arm drops the center link
The UV-stabilized material resists fading and cracking over years of exposure
Manley 23665-16 Manley Titanium Valve Spring Retainers Oil Pan Gaskets MSD components are the industryThe Manley 23665 16 Manley Titanium Valve Spring Retainers provide the required spring pressure for aggressive cam profiles without coil bind or surge at high RPM. Manley Professional valve springs are wound from proprietary wire stock and heat set to prevent pressure loss over time. Part 67938 is configured for its specific application with attention to fitment requirements. Each spring is tested for installed height pressure, open pressure, and coil
