Vauxhall Astra J GTC VXR 2.0 16v Turbocharged Direct Injected A20NFT 9.3:1 Wossner Forged Pistons Kit

Compression Ratio: 9.3:1

86mm K9490DA , 86.5mm  K9490D050 Bore Pistons

Compression Height: 30.9mm

Stroke: 86mm

Engine: A20NFT / A20NHT 2012 to current

You are buying a full set of 4 Pistons with Rings, Gudgeon pins & Circlips. 

PLEASE CONTACT US FOR SIZE AVAILABILITY / DELIVERY TIME FRAME

You are buying a full set of 4 Pistons with Rings, Gudgeon pins & Circlips. 

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.