Manufacturer

Vauxhall / Opel

Kit Part Number K9490

Engine Code A20NFT / A20NHT

YOM From 2012

YOM To current

Piston number  K9490D050, K9490DA

Bore Size 86.5mm – K9490D050, 86mm – K9490DA

Stroke 86mm

Compression Height 30.9mm

OEM Comp Ratio 9.3:1

Number of Rings 3

OEM Rod Length 145.5mm

Clip Part Number CW23

Pin Size 23mm

Pin Part Number WP082

Cylinders 4

Valves Per Cylinder 4

Suits Wossner Con Rod G0280

Con Rod Length C/C 145.5mm

Wössner is the innovative specialists for high performance pistons and conrods. Wössner products are to be found in engines operating at the highest levels of motor sport, in competition and, of course, in everyday use – in fact, anywhere where longevity

and operational noise are important factors.

Wössner products are the source of the superior power behind the success of well known motor sport teams at national and international race meets.