Wössner Forged Piston Kit

Wössner forged piston kit.



Fits:
Porsche 944 S2 (1989-1991)
Porsche 968 (1992-1995)

Suitable to use with Nikasil liners.

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

Part Number: K9493
Engine Type - 3.0 / 944 S2 - M44.41 - M44.43 /
968 - M44.41 - M44.43.

Bore Sizes Available:
- 104.00mm, Compression Ratio: 10.9:1
- 104.50mm, Compression Ratio: 10.9:1
- 105.00mm, Compression Ratio: 10.9:1

Bore Size 104.00mm
Piston Size: 103.92mm – K9493DA
Over Size: 0mm
Displacement CC: 2989cc
Dome / Bowl Volume: 25.5cc
Wössner Comp Ratio: 10.9:1
Ring Part Number: 1040XSU


Bore Size 104.50mm
Piston Size: 104.42mm – K9493D050
Over Size: 0.5mm
Displacement CC: 3018cc
Dome / Bowl Volume: 25.5cc
Wössner Comp Ratio: 10.9:1
Ring Part Number: 1045XSU

Bore Size 105.00mm
Piston Size: 104.92mm – K9493D100
Over Size: 1mm
Displacement CC: 3047cc
Dome / Bowl Volume: 25.5cc
Wössner Comp Ratio: 10.9:1
Ring Part Number: 1050XSU


Standard
Engine CC - 2990 / 3019 / 3048cc.
Stroke - 88.00mm
OE Compression Ratio - 10.9:1.
Compression Height - 36.00mm.
Number of 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.