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Porsche Value Spring and Titanium Retainer Kit - 9mm - 911 - 914-6 - 930 | 1965-1994 HP10T9-HP109-HPSS-PKG

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Porsche Value Spring and Titanium Retainer Kit - 9mm - 911 - 914-6 - 930 | 1965-1994 HP10T9-HP109-HPSS-PKG

Porsche 9mm Value Spring and Titanium Retainer Kit for 911 (1965-1994) , 914-6 (1970-1972), and 930 (1978-1979). 

Designed specifically for Porsche applications—not adapted from other platforms—this kit delivers a higher natural frequency than factory OE springs, making it ideal for performance and racing engines while helping minimize potential over-rev damage on track.

Tech Specs:

  • Installed Height: 1.340” (34mm)

  • Seat Pressure: 70–80 lbs

  • Max Valve Lift: .512” (13mm)

  • Spring Rate: 360 lbs/in

  • Coil Bind Height: 1.13”

  • Dual springs (includes damper spring)

Definitions:

  • Installed Height: Spring height with the valve closed.

  • Open Height: Spring height with the valve open under load.

  • Coil Bind: Point at which the spring is fully compressed and coils are stacked.

$370.04

Original: $1,057.25

-65%
Porsche Value Spring and Titanium Retainer Kit - 9mm - 911 - 914-6 - 930 | 1965-1994 HP10T9-HP109-HPSS-PKG—

$1,057.25

$370.04

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Description

Porsche 9mm Value Spring and Titanium Retainer Kit for 911 (1965-1994) , 914-6 (1970-1972), and 930 (1978-1979). 

Designed specifically for Porsche applications—not adapted from other platforms—this kit delivers a higher natural frequency than factory OE springs, making it ideal for performance and racing engines while helping minimize potential over-rev damage on track.

Tech Specs:

  • Installed Height: 1.340” (34mm)

  • Seat Pressure: 70–80 lbs

  • Max Valve Lift: .512” (13mm)

  • Spring Rate: 360 lbs/in

  • Coil Bind Height: 1.13”

  • Dual springs (includes damper spring)

Definitions:

  • Installed Height: Spring height with the valve closed.

  • Open Height: Spring height with the valve open under load.

  • Coil Bind: Point at which the spring is fully compressed and coils are stacked.