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Supertech 6.6mm Intake Valve Stem Seals (Polyacrylic Material) Supertech highly recommends using reduced O.D. valve stem seals when running their dual valve spring kit. Please select from the options below.
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ContactExtreme PSI 1553 Winchester Road Unit C Bensalem, PA 19020 215-244-4295 Fax: 215-244-4297 Sales: [email protected] Tech: [email protected] Tracking: [email protected] Mon - Fri: 9AM - 5:00PM (EST) Saturday: Closed Sunday: Closed