SKU: MAN42139TM-8
MPN: 42139TM-8
The Lash Caps .3110 Stem 8pk - Tensilemax by MANLEY represents a precision valve train component engineered for high-performance engine builders and serious enthusiasts who demand reliability under extreme conditions. Valve lash caps serve a critical function: they protect the top of valve stems while maintaining precise clearances in the valve train, preventing damage during assembly and operation. This eight-pack configuration is ideal for complete cylinder head refreshes, race engine builds, or replacement of damaged caps across an entire engine platform.
Constructed from Tensilemax steel, these lash caps deliver superior strength and wear resistance compared to standard alternatives. The .3110 stem diameter specification is precisely engineered to fit 5/16-inch valve stems, ensuring a secure fit without lateral play that could compromise valve geometry or rocker arm contact. With a minimum top thickness of 0.080 inches, each cap provides the structural integrity necessary to handle aggressive valve spring pressures and repeated cycles in both street and race applications. The design accommodates a minimum 0.250-inch top dimension, allowing proper clearance and installation on modern valve stem configurations.
Professionals restoring vintage muscle cars, building small-block and big-block performance engines, and preparing competition powerplants rely on MANLEY valve components for consistency and durability. These lash caps are essential when upgrading to aggressive cam profiles or installing high-lift rocker arms where factory components fall short. Installation is straightforward—caps simply slide onto the valve stem and retain position through rocker arm geometry—making them suitable for both experienced engine builders and first-time rebuilds. A full eight-pack ensures you have spares for future builds or can equip a complete engine platform without sourcing multiple purchases.
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