High performance valve spring, seat and retainer kit 9mm. Porsche 911 / 964

High performance valve spring, seat and retainer kit 9mm. 

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. 

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations. 

Kit includes
High performance valve spring x 12
High performance valve spring seat x 12
High performance 9mm titanium valve spring retainer disc x 12

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HP109HSSKIT

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