Wössner Forged Piston Kit

Wössner forged piston kit.



Fits:
Porsche 356 B / 912 / 356 SC Super 90 1960-1969 (90 PS).

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9015
Engine Type: 616.16 / 616.36
OE Bore Size: 82.50mm

Bore Sizes Available:
- 82.50mm -1582.30cc, Compression Ratio: 9.5:1
- 83.00mm -1601.54cc, Compression Ratio: 9.6:1
- 83.50mm -1620.89cc, Compression Ratio: 9.71:1

Bore Size 82.50mm
Piston Size: 82.43mm – K9015DA
Over Size: 0mm
Displacement CC: 1582cc
Dome / Bowl Volume: 19.33cc
Wössner Comp Ratio: 9.5:1
Ring Part Number: 825XSY

Bore Size 83.00mm
Piston Size: 82.93mm – K9015D050
Over Size: 0.5mm
Displacement CC: 1620cc
Dome / Bowl Volume: 19.33cc
Wössner Comp Ratio: 9.6:1
Ring Part Number: 830XSY

Bore Size 83.50mm
Piston Size: 83.43mm – K9015D100
Over Size: 1mm
Displacement CC: 1620cc
Dome / Bowl Volume: 19.33cc
Wössner Comp Ratio: 9.71:1
Ring Part Number: 835XSY

Standard
Stroke: 74mm
OE Comp. Ratio: 9.3:1
Comp. Height: 27mm
Valves Per Cylinder: 2
Cylinders: 4

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner forged piston kit.



Fits:
Porsche 911 3.2 12v 1983-90

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9255
Engine Type: 930.20 / 930.21 / 930.26
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 3164.18cc, Compression Ratio: 10.5:1
- 98.00mm - 3367.18cc, Compression Ratio: 11.1:1

Bore Size 95.00mm
Piston Size: 94.95mm – K9255DA
Over Size: 0mm
Displacement CC: 3163cc
Dome / Bowl Volume: 36.5cc
Wössner Comp Ratio: 10.5:1
Ring Part Number: 950XSY

Bore Size 98.00mm
Piston Size: 97.95mm – K9255D300
Over Size: 3mm
Displacement CC: 3mm
Dome / Bowl Volume: 36.5cc
Wössner Comp Ratio: 11.1:1
Ring Part Number: 980XSY

Standard
Stroke: 74.4mm
Dome/Bowl Volume: +36.5cc
OE Comp. Ratio: 10.3:1
Comp. Height: 32.80mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner forged piston kit.



Fits:
Porsche 911 E / 911 L 2.0 12v 1965-68 (130-140PS)

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9102
Engine Type: 2000
OE Bore Size: 80.00mm

Bore Sizes Available:
- 80.00mm - 1990.51cc, Compression Ratio: 9:1
- 80.50mm - 2015.47cc, Compression Ratio: 9.1:1
- 81.00mm - 2040.59cc, Compression Ratio: 9.2:1
- 81.50mm - 2065.00cc, Compression Ratio: 9.2:1

Bore Size 80.00mm
Piston Size: 79.94mm – K9102DA
Over Size: 0mm
Displacement CC: 1990cc
Dome / Bowl Volume:
Wössner Comp Ratio: 9:1
Ring Part Number: 800XDS

Bore Size 80.50mm
Piston Size: 80.44mm – K9102D050
Over Size: 0.5mm
Displacement CC: 2015cc
Dome / Bowl Volume:
Wössner Comp Ratio: 9.1:1
Ring Part Number: 805XDS

Bore Size 81.00mm
Piston Size: 80.94mm – K9102D100
Over Size: 1mm
Displacement CC: 2040cc
Dome / Bowl Volume:
Wössner Comp Ratio: 9.2:1
Ring Part Number: 810XSY

Bore Size 81.50mm
Piston Size: 81.44mm – K9102D150
Over Size: 1.5mm
Displacement CC: 2065cc
Dome / Bowl Volume:
Wössner Comp Ratio: 9.2:1
Ring Part Number: 815XSY

Standard
Stroke: 66mm
Dome/Bowl Volume: -
OE Comp. Ratio: 9.1:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner forged piston kit.



Fits:
Porsche 911 T 2.2 12v 1969-71 (125PS)

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9135
Engine Type: 911.03
OE Bore Size: 84.00mm

Bore Sizes Available:
- 84.00mm - 2194.54cc, Compression Ratio: 8.5:1
- 84.50mm - 2220.74cc, Compression Ratio: 8.59:1
- 85.00mm - 2247.10cc, Compression Ratio: 8.68:1

Bore Size 84.00mm
Piston Size: 83.94mm – K9135DA
Over Size: 0mm
Displacement CC: 2194cc
Dome / Bowl Volume: 19.1cc
Wössner Comp Ratio: 8.5:1
Ring Part Number: 840XTY

Bore Size 84.50mm
Piston Size: 84.44mm – K9135D050
Over Size: 0.5mm
Displacement CC: 2220cc
Dome / Bowl Volume: 19.1cc
Wössner Comp Ratio: 8.59:1
Ring Part Number: 845XTY

Bore Size 85.00mm
Piston Size: 84.94mm – K9135D100
Over Size: 1mm
Displacement CC: 2246cc
Dome / Bowl Volume: 19.1cc
Wössner Comp Ratio: 8.68:1
Ring Part Number: 850XTY

Standard
Stroke: 66mm
Dome/Bowl Volume: +19.1cc
OE Comp. Ratio: 8.6:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner forged piston kit



Fits:
Porsche 930 3.0 12v Turbo 1974-77

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wossner's latest catalogue:

Part Number: K9289
Engine Type: M30.66 / M30.B6
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 2994.06cc

Stroke: 70.40mm
Dome/Bowl Volume: 4.2cc
Wössner Comp. Ratio: 6.5:1
OE Comp. Ratio: 6.5:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner forged piston kit.



Fits
Porsche 930 3.3 12v Turbo 1977-89

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9290
Engine Type: M30.66 / M30.B6
OE Bore Size: 97.00mm

Bore Sizes Available:
- 97.00mm - 3298.81cc, Compression Ratio: 7:1
- 98.00mm - 3366.00cc, Compression Ratio: 7:1

Bore Size 97.00mm
Piston Size: 96.95mm – K9290DA
Over Size: 0mm
Displacement CC: 3298cc
Dome / Bowl Volume: 4.2cc
Wössner Comp Ratio: 7:1
Ring Part Number: 970XTY

Bore Size 98.00mm
Piston Size: 97.95mm – K9290D100
Over Size: 1mm
Displacement CC: 3366cc
Dome / Bowl Volume: 4.2cc
Wössner Comp Ratio: 7:1
Ring Part Number: 980XTY

Standard
Stroke: 74.40mm
Dome/Bowl Volume: 4.2cc
OE Comp. Ratio: 7.0:1
Comp. Height: 32.8mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit.



Fits:
Porsche 911 S 1967-1969 (160PS)

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9412
Engine Type: - 901.02, 901.10
OE Bore Size: 80.00mm

Bore Sizes Available:
- 80.00mm - 1990.51cc, Compression Ratio: 10.5:1
- 80.50mm - 2015.47cc, Compression Ratio: 10.62:1
- 81.00mm - 2040.59cc, Compression Ratio: 10.74:1

Bore Size 80.00mm
Piston Size: 79.93mm – K9412DA
Over Size: 0mm
Displacement CC: 1990cc
Dome / Bowl Volume: 34.5cc
Wössner Comp Ratio: 10.5:1
Ring Part Number: 800XDS

Bore Size 80.50mm
Piston Size: 80.43mm – K9412D050
Over Size: 0.5mm
Displacement CC: 2015cc
Dome / Bowl Volume: 34.5cc
Wössner Comp Ratio: 10.62:1
Ring Part Number: 805XDS

Bore Size 81.00mm
Piston Size: 80.93mm – K9412D100
Over Size: 1mm
Displacement CC: 2040cc
Dome / Bowl Volume: 34.5cc
Wössner Comp Ratio: 10.74:1
Ring Part Number: 810XDS

Standard
Stroke: 66mm
Dome/Bowl Volume: +34.5cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit.



Fits:
Porsche 911 S 2.2 12v 1969-70 (180PS)

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9103
Engine Type: 911.02
OE Bore Size: 84.00mm

Bore Sizes Available:
- 84.00mm - 2194.54cc, Compression Ratio: 10.5:1
- 84.50mm - 2220.74cc, Compression Ratio: 10.61:1
- 85.00mm - 2247.10cc, Compression Ratio: 10.73:1

Bore Size 84.00mm
Piston Size: 83.94mm – 83.94mm
Over Size: 0mm
Displacement CC: 2340cc
Dome / Bowl Volume: 29.4cc
Wössner Comp Ratio: 10.5:1
Ring Part Number: 840XSY

Bore Size 84.50mm
Piston Size: 84.44mm – K9103D050
Over Size: 0.5mm
Displacement CC: 2368cc
Dome / Bowl Volume: 29.4cc
Wössner Comp Ratio: 10.61:1
Ring Part Number: 845XSY

Bore Size 85.00mm
Piston Size: 84.94mm – K9103D100
Over Size: 1mm
Displacement CC: 2396cc
Dome / Bowl Volume: 29.4cc
Wössner Comp Ratio: 10.73:1
Ring Part Number: 850XSY

Standard
Stroke: 66mm
Dome/Bowl Volume: +29.4cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit



Fits:
Porsche 911 S/E/T 2.4L

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9482
Engine Type: -
OE Bore Size: 84.00mm

Bore Sizes Available:
- 84.00mm - 2194.54cc, Compression Ratio: 10:1
- 84.50mm - 2220.74cc, Compression Ratio: 10.11:1
- 85.00mm - 2247.10cc, Compression Ratio: 10.22:1

Bore Size 84.00mm
Piston Size: 83.94mm – K9482DA
Over Size: 0mm
Displacement CC: 2340cc
Dome / Bowl Volume: 24.6cc
Wössner Comp Ratio: 10:1
Ring Part Number: 840XSY

Bore Size 84.50mm
Piston Size: 84.44mm – K9482D050
Over Size: 0.5mm
Displacement CC: 2368cc
Dome / Bowl Volume: 24.6cc
Wössner Comp Ratio: 10.11:1
Ring Part Number: 845XSY

Bore Size 85.00mm
Piston Size: 84.94mm – K9482D100
Over Size: 1mm
Displacement CC: 2396cc
Dome / Bowl Volume: 24.6cc
Wössner Comp Ratio: 10.22:1
Ring Part Number: 850XSY

Standard
Stroke: 70.4mm
Dome/Bowl Volume: +24.6cc
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit.



Fits:
Porsche 911 SC 3.0 12v 1978-82

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9456
Engine Type: 930.10
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 2994.06cc, Compression Ratio: 11.5:1

Bore Size 95.00mm
Piston Size: 94.95mm – K9456DA
Over Size: 0mm
Displacement CC: 2993cc
Dome / Bowl Volume: 52.4cc
Wössner Comp Ratio: 11.5:1
Ring Part Number: 950XSY

Standard
Stroke: 70.40mm
Dome/Bowl Volume: +48.2cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit



Fits:
Porsche 911 SC 3.0 12v 1980-83 (204PS)

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Not for use with ALUSIL cylinders

Part Number: K9254
Engine Type: 930.10
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 2994.06cc, Compression Ratio: 10.5:1
- 98.00mm - 3186.15cc, Compression Ratio: 11:1

Bore Size 95.00mm
Piston Size: 94.93mm – K9254DA
Over Size: 0mm
Displacement CC: 2994cc
Dome / Bowl Volume: +42.2cc
Wössner Comp Ratio: 10.5:1
Ring Part Number: 950XSY

Bore Size 98mm
Piston Size: 97.93mm – K9254D300
Over Size: 3mm
Displacement CC: 3186cc
Dome / Bowl Volume: +42.2cc
Wössner Comp Ratio: 11:1
Ring Part Number: 980XSY

Standard
Stroke: 70.4mm
Dome/Bowl Volume: +42.2cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit



Fits:
Porsche 911 SC 3.0Ltr

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K1730DA
Engine Type: 930.10
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 2994.06cc, Compression Ratio: 11.5:1

Bore Size 95.00mm
Piston Size: – K1730DA
Over Size: 0mm
Displacement CC: 2994cc
Dome / Bowl Volume: +51.60cc
Wössner Comp Ratio: 11.5:1
Ring Part Number: 950ZST-3

Standard
Stroke: 70.40mm
Dome/Bowl Volume: +48.2cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high compression forged piston kit.



Fits:
Porsche RS 2.7 1973

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K9413
Engine Type: -
OE Bore Size: 90.00mm

Bore Sizes Available:
- 90.00mm - 2687.19cc, Compression Ratio: 11.6:1
- 92.00mm - 2807cc, Compression Ratio: 11.6:1

Bore Size 90.00mm
Piston Size: 89.95mm – K9413DA
Over Size: 0mm
Displacement CC: 2686cc
Dome / Bowl Volume: 31.5cc
Wössner Comp Ratio: 11.6:1
Ring Part Number: 900XSY

Bore Size 92.00mm
Piston Size: 91.95mm – K9413D200
Over Size: 2mm
Displacement CC: 2807cc
Dome / Bowl Volume: 31.5cc
Wössner Comp Ratio: 11.6:1
Ring Part Number: 920XSY

Standard
Stroke: 70.4mm
Dome/Bowl Volume: +26.4cc
Wössner Comp. Ratio: 11.6:1
OE Comp. Ratio: 8.5:1
Comp. Height: 32.5mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

Wössner high fast road forged piston kit.



Fits:
Porsche 911 SC 3.0

Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K1720DA
Engine Type: 930.10
OE Bore Size: 95.00mm

Bore Sizes Available:
- 95.00mm - 2994.06cc, Compression Ratio: 10.5:1

Bore Size 95.00mm
Piston Size: – K1720DA
Over Size: 0mm
Displacement CC: 2994cc
Dome / Bowl Volume: +42.2cc
Wössner Comp Ratio: 10.5:1
Ring Part Number: 950XSY-3

Standard
Stroke: 70.40mm
Dome/Bowl Volume: +48.2cc
OE Comp. Ratio: 9.8:1
Comp. Height: 34mm
Valves Per Cylinder: 2
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.

Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.