SKU: PACPAC-R553-16
UPC: 193564539571
MPN: PAC-R553-16
The 1.440 TI Valve Spring Retainers - 8 Degree from PAC Racing Springs are precision-engineered components designed for high-performance engine builders and racing enthusiasts who demand reliability under extreme valve train stress. These titanium retainers are essential for dual-spring valve configurations, where controlling spring pressure and maintaining consistent valve timing are critical to engine performance. Built for competition and street applications alike, these retainers solve the challenge of spring coil bind and valve float by providing superior load management.
Constructed from titanium, the 1.440 TI retainers offer a significant weight reduction compared to steel alternatives, which translates directly to lower inertial mass and improved engine responsiveness at high RPM. The 8-degree valve seat angle matches common cylinder head designs and works in concert with dual springs to maintain consistent pressure across the full valve lift range. The stepped OD design—featuring 1.070 inch and 0.750 inch steps—ensures precise fitment and alignment on valve stems while accommodating the dual-spring assembly. This set of 16 retainers provides complete coverage for a typical V8 engine, with each unit manufactured to PAC Racing's exacting tolerances for concentricity and finish quality.
These retainers are ideal for builders working with aftermarket cylinder heads, high-lift camshafts, and aggressive valve spring packages where standard retainers cannot sustain the demands of elevated RPM and spring pressure. Installation requires careful alignment and verification of spring pressure specifications to prevent premature wear or catastrophic valve train failure. The lightweight titanium construction is particularly valued in naturally aspirated engines and boosted applications where every fraction of weight savings contributes to overall performance gains. Verify compatibility with your specific valve stem diameter and spring configuration before ordering to ensure proper fitment and optimal engine performance.
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