911 930 964 914/6 9mm Valve Stem Titanium Valve Spring Retainer Set For Sport / Race Engines (ENG 911 930 9 TI R)

PATRICK MOTORSPORTS USA Verified independent store

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Install These On Your Next Rebuild For Added Insurance On Your High RPM Engines - They Are Stronger Than Stock And Lighter So You Get An Added Bonus Over Stock. Less Chance Of Dama ge And Valve Float Titanium Valve Spring Retainer Set For 9mm Valve Stem - For Sport / Race Engines - 1965-1994 Porsche 911 / 914-6 / 930 / 964 / 964 Turbo (965) - Patrick Motorsports USA - Sold As A Set Of 12 Replaces Part Numbers: 901 105 421 04 - Concave Washer (Valve Spring Retainer) Note: Requires High Performance Valve Spring Set # 901 105 901 50 HP and High Performance Valve Spring Seats Also Sold In A Complete Set With Upgraded HD Springs And Valve Spring Seats # ENG 901 105 901 HP PMS NOTE: NOT COMPATIBLE WITH O.E. VALVE SPRINGS OR O.E. VALVE SEATSAlternate Part Numbers: ENG 911 930 9 TI R / ENG-911-930-9-TI-R / ENG.911.930.9.TI.R / ENG9119309TIR / 901 105 421 04 / 901-105-421-04 / 901.105.421.04 / 90110542104 / 901 105 421 03 / 901-105-421-03 / 901.105.421.03 / 90110542103 / 901 105 421 01 / 901-105-421-01 / 901.105.421.01 / 90110542101 / RS VALVE SPRING / RSR VALVE SPRING 01/16/2025 Show more