Part Number: K591M86

Description: Pro Tru Pistons; Sport Compact Series; Set of 6 Pistons; Recommended RingSet: 8600XX; Rings & Pins Included

Dome Volume: 14

Bore: 86mm

Comp Ratio: 7.9-8.25:1

Rod: 121.5

Stroke: 73.68

Comp Height: 30

Gram Weight: 334

Piston Quantity: 6

Notes: Not for sale in California not CARB Legal

Fitment: 89-02 Nissan Skyline GTR R32/R33/R34

Details:

World renowned for our work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated sport compact engines. Wiseco’s Sport Compact Pro Tru line creates the best value in forged pistons today. These American made pistons are forged and machined by skilled Ohio craftsmen with state-of-the-art forging presses and CNC machines. By using dedicated forgings specific to the final piston shape, Pro Tru pistons are stronger and lighter than industry standards. Pro Tru sets include plasma moly 1/16, 1/16, 3/16 pre-gapped ring packages which provide excellent seal, friction reduction, and long life. Pro Tru pistons also come in a variety of volumes that allow the engine builder to choose the exact compression ratio required for their engine.

Features and Benefits

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strengthArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operationFully machined crown featuresPrecision ring grooves, anti-detonation groove, and additional ring seal improving featuresForced pin oilingDesigned and built to withstand heavy to severe duty performance applications