SKU: PACPAC-S161-16
MPN: PAC-S161-16
The Spring Seat - Chromoly 1.350 x .575 .060 Thick by PAC Racing Springs is a precision-engineered component designed for high-performance engine builders and street machine enthusiasts who demand reliability under extreme valve train stress. This chromoly steel seat serves as the critical interface between your valve spring and cylinder head, providing consistent load support across thousands of compression cycles.
Machined from chromoly steel stock, this spring seat features a 1.350-inch outer diameter with a 0.575-inch bore and a wall thickness of 0.060 inches. These specifications deliver an optimal stiffness-to-weight ratio and superior load distribution, ensuring proper seating geometry that maintains coil bind clearance while maximizing spring preload consistency.
This component is ideal for builders upgrading to beehive or dual-spring packages that demand increased seat pressure and dimensional precision. Its design is particularly beneficial for applications requiring high-RPM operation and repeated thermal cycling, making it a valuable addition to any performance engine build.
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