Engine Valves / Guides / Springs


- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
HP10T8HPSSKIT
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This kit is comprised of the following items:





- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 993 C2 / C4 3.6L 1994-97
Click 'Zoom in' for large parts diagram.
Diagram Ref No 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310590151
The product you are viewing cross references to these numbers
This kit is comprised of the following items:





- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

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Related, superseded, cross reference or alternative numbers for comparison.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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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 911 (993) 3.8 Carrera RS 1995-96 (M64.20)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10
Related reference numbers
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99310541943
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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 911 (993) 3.8 Carrera RS 1995-96 (M64.20)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10
Related reference numbers
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99310541943
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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
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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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97

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.
Related reference numbers
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99310541906
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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 993 Carrera RS 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
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99310541983
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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 993 Carrera RS - 1995 to 1998
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
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99310541983
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- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 993 Turbo 3.6L 1995-98 (M64.60)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.
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99310541952
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- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 993 Turbo 3.6L 1995-98 (M64.60)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.
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99310541952
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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 911 (993) 3.8 Carrera RS 1995-96 (M64.20)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9
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99310540942
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- Porsche 993 (911) RS 1994-97

Fits:
Porsche 911 (993) 3.8 Carrera RS 1995-96 (M64.20)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9
Related reference numbers
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99310540942
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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

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.
Related reference numbers
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99310540902
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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
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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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97

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.
Related reference numbers
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99310540502
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