Motor: Titanium klepveren voor Porsche 911 & 964

Motor: Titanium klepveren voor Porsche 911 & 964

859,00 exclusief BTW | 1.039,39 inclusief BTW


Our 9mm Kit includes:

  • AASCO HP109 High Performance Valve Springs
  • HP10T9 Titanium Valve Spring Retainers
  • HPSS Valve Spring Seats

Suitable for :

  • 1965-1994 Porsche 911
  • 1988-1994 Porsche 964
  • 1970-1972 Porsche 914-6,
  • 1978-1979 Porsche 930 models.

AASCO’s high performance valve springs, titanium valve spring retainers, and precision valve spring seats are all designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. It operates at a higher natural frequency than the original factory Porsche or OE valve spring for performance and racing engines and at the very least minimizes damage from overrev when tracking your Porsche.

Tech Specs:

Installed Height 1.340” (34mm)
Seat Pressure (lbs) 70-80
Max Valve Lift .512” (13mm)
Spring Rate (lbs/in) 360
Coil Bind Height (in): 1.13″
Spring Rate: 360 lbs/in
No. of Springs Per Valve: Dual (Damper Spring Included)


Seat (installed) height: Total height of the spring when the valve is closed and the spring is unloaded
Valve spring open height: Total height of the spring when valve is open and spring is experiencing load (compressing)
Valve spring coil bind: When the valve spring is fully compressed to the point that all of the coils are compressed

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