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The Manley LT4 intake/exhaust valve spring retainers for Chevrolet LT4 are CNC-machined titanium retainers built to reduce valvetrain mass and support higher RPM capability. Specified for 8mm valve stems and requiring Manley P/N 13098 or OEM LT4 valve locks, they list a +.105 in. height and weigh approximately 11.0 grams. These retainers target demanding racing environments where strength and reduced mass matter.
Manley LT4 INT/EXH Spring Retainer 1.340 7 Deg
