Stuttgart Classica

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Aasco Performance Valve Spring Kit

850.00
IMG_2966.jpg

Aasco Performance Valve Spring Kit

850.00

Aasco Performance Valve Springs, Titanium Retainers and Spring Seat Sets

Each set is everything needed to use these performance valve springs. These springs usually require the spring seat to be modified, but we provide upgraded spring seats specifically for the job. The Aasco titanium spring retainers also need to be used with these springs, these are provided too.

The Aasco spring has a rate of 360lbs per inch vs Porsche’s at 315lbs per inch.

Specs:

  • Installed Height 1.340” (34mm)

  • Seat Pressure (lbs) 70-80

  • Max Valve Lift .512” (13mm)

  • Spring Rate (lbs/in) 360

At an installed height of 34mm, this gives a seat pressure of 75lbs and the capability of 13mm of lift with a nose pressure of 270lbs 1.25mm from coil bind. The Porsche spring will also give 75lbs of seat pressure but will only allow 11.8mm of lift at 1.25mm from coil bind.

911/911 Turbo (1965-94) have 9mm valve stems, 1995-1998 993 have 8mm valve stems.

Free UK postage on all our products!  We can ship this item worldwide for £40.

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Aasco Performance Valve Springs, Titanium Retainers and Spring Seat Sets

Each set is everything needed to use these performance valve springs. These springs usually require the spring seat to be modified, but we provide upgraded spring seats specifically for the job. The Aasco titanium spring retainers also need to be used with these springs, these are provided too.

The Aasco spring has a rate of 360lbs per inch vs Porsche’s at 315lbs per inch.

Specs:

  • Installed Height 1.340” (34mm)

  • Seat Pressure (lbs) 70-80

  • Max Valve Lift .512” (13mm)

  • Spring Rate (lbs/in) 360

At an installed height of 34mm, this gives a seat pressure of 75lbs and the capability of 13mm of lift with a nose pressure of 270lbs 1.25mm from coil bind. The Porsche spring will also give 75lbs of seat pressure but will only allow 11.8mm of lift at 1.25mm from coil bind.

911/911 Turbo (1965-94) have 9mm valve stems, 1995-1998 993 have 8mm valve stems.

Free UK postage on all our products!  We can ship this item worldwide for £40.