Engine Valves / Guides / Springs

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

Fits:
Porsche 993 - 1994 to 1998

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 8mm titanium valve spring retainer disc x 12

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HP10T8HPSSKIT

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Valve springs Set of 12 Porsche 993 1995-97



Fits:
Porsche 993 C2 / C4 3.6L 1994-97

Click 'Zoom in' for large parts diagram.
Diagram Ref No 13.

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99310590151

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8mm titanium valve spring retainer disc - high performance



Fits:
Porsche 993 - 1994 to 1998

8mm Porsche 911 Titanium Retainers for 993 1995-1998 for 8mm valves.

Please note
Must be used in conjunction with Aasco HP109-Valve Springs and HPSS Spring Seats. 

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Related, superseded, cross reference or alternative numbers for comparison.

HP10T8

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Engine cylinder head exhaust valve.
Pre varioram engine cars



Fits:
Porsche 993 C2/C4 3.6L 1993-95
911 (993) 3.6 L M64.05 / M64.06 / M64.07 / M64.08


Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.

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99310541901

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Engine cylinder head exhaust valve. Varioram engine cars



Fits:
Porsche 993 C2/C4 3.6L 1996-98
911 (993), 3.6 Carrera M64.21 / M64.22 / M64.23 / M64.24

Valve head diameter 43,50 mm
Valve stem diameter 8,00 mm
Valve shaft length 109,00 mm
Valve seat angle 45 °


Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.

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99310541906

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Engine cylinder head inlet valve.



Fits:
Porsche 993 C2/C4 3.6L 1994-95
Porsche 993 Turbo 1995-98
911 (993) 3.6 L M64.05
911 (993) 3.6 L M64.06
911 (993) 3.6 L M64.07
911 (993) 3.6 L M64.08
911 (993) 3.6 L M64.60 TURBO

Inlet Valve. Valve Head Ø: 49 mm, Valve Stem Ø: 8 mm, Valve Shaft Length: 110 mm, Valve Seat Angle: 45 °

Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.

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99310540902

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Engine cylinder head inlet valve. Price is for each.
Valve Head Ø: 50 mm, Valve Stem Ø: 8 mm, Valve Shaft Length: 110,4 mm, Valve Seat Angle: 45 °.



Fits:
Porsche 993 C2/C4 3.6L 1996-98
M64.21
M64.22
M64.23
M64.24

Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.

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99310540502

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Engine cylinder head inlet valve.



Fits:
Porsche 993 C2 / C4 3.6L 1996-98
M64.21
M64.22
M64.23
M64.24

Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.

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99310540502

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Exhaust valve guide 1st oversize.
6 per engine. Price is for each.



Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram Ref no 2.

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99310432172

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Exhaust valve guide 1st oversize.
6 per engine. Price is for each.



Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram Ref no 2.

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99310432172

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Exhaust valve guide 1st oversize.
6 per engine. Price is for each.



Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram Ref no 3.

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99310432271

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Exhaust valve guide 1st oversize.
6 per engine. Price is for each.



Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram Ref no 3.

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99310432271

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Valve lash adjuster fixture for Porsche 911



The established method of setting valve lash with a feeler gauge often provides for a "close enough" result and rarely provides for accurate, consistent, and easy to obtain precision. STOMSKI RACING's new version of an old-standby takes the "feel" out of setting valves and provides absolute precision, speed, ease of use, and consistency. By conveniently mounting a travel indicator over the adjuster of the rocker arm, STOMSKI RACING's 911 Valve Lash Adjuster allows you to quickly and accurately set and confirm the actual valve lash without settling for "close enough" or wondering whether your feel is consistent while trying to contort a feeler gauge into the far reaches of the 911 engine.

The SR097 is precision machined from 6061 aluminum and anodized for years of service on all 911 engines including 964s and 993s. Also available are a range of dial indicators including metric, digital, and compact travel indicators for use in restricted areas (pictured).

PLEASE NOTE:  this tool does not come with the gauge

Valve spring kit - high performance. 



Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

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. 

Please note
993 - must use 8mm Ti retainers and Aasco Seats

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

HP109

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Valve spring ring. Sold each.



Fits:
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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99310546302

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Valve spring seat kit - high performance. 



Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Our Steel Spring Seats pocket the inner spring of our Aasco High Performance Valve Springs.

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. 

Please note
993 - must use 8mm Ti retainers and Aasco Seats

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

HPSS

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