Wiseco K651M865 Pro Tru Forged Pistons for 10-14 Hyundai Genesis Coupe 2.0T 86.5

Vehicle Fitment

• 2010-2014 Hyundai Genesis Coupe 2.0T (BK1 / BK2, G4KF Theta II 2.0L Turbo I4)

Fitment Notes

• G4KF Theta II 2.0L Turbo engine only
• Does not fit 3.8L V6 Genesis Coupe
• 86.5mm oversize bore -- requires machine work on factory block
• Set of 4 pistons
• Standard bore (86mm) variant: Wiseco K651M86
• Compatible with stock and aftermarket rods

Features

• Pro Tru Sport Compact Series
• Forged aluminum construction
• Made in USA (Ohio)
• CNC machined for tight tolerances
• Dedicated forging for application-specific strength
• Stronger and lighter than industry standard
• Designed for turbo, supercharger, and nitrous use
• Plasma moly pre-gapped ring package
• 1/16" top ring
• 1/16" second ring
• 3/16" oil ring
• Excellent ring seal and friction reduction
• Heat-treated for thermal stability
• Race-proven in sport compact applications

Specifications

• Brand: Wiseco
• Series: Pro Tru Sport Compact
• Quantity: 4 pistons (set)
• Bore: 86.5mm (0.5mm oversize)
• Stroke: 86mm
• Compression height: 30mm
• Compression ratio: 9.25:1
• Rod length: 146mm
• Dome volume: -4cc (dished)
• Ring package: Plasma moly 1/16, 1/16, 3/16 pre-gapped
• Country of origin: USA

Included Components

• 4x Wiseco Pro Tru forged pistons
• 4x Plasma moly ring sets (pre-gapped)
• 4x Wrist pins
• 8x Circlips

Product Description

The Wiseco K651M865 is a Pro Tru Sport Compact Series forged piston set engineered specifically for the 2010-2014 Hyundai Genesis Coupe 2.0T equipped with the G4KF Theta II 2.0L Turbo engine, sized at 86.5mm (0.5mm oversize from the factory 86mm bore) with a 9.25:1 compression ratio and -4cc dished dome -- the ideal setup for built turbo Genesis Coupe applications running higher boost levels with the factory turbo, larger upgraded turbos, or even nitrous oxide and methanol injection setups. Wiseco's Pro Tru Sport Compact line creates the best value in forged pistons today -- engineered with the same race-winning DNA that has made Wiseco the industry leader in performance pistons for over 75 years.

These pistons are forged and CNC-machined in the USA by skilled Ohio craftsmen using state-of-the-art forging presses and CNC machines. The dedicated forging process -- specific to each piston shape -- produces pistons that are both stronger and lighter than industry standards, with crown thickness and ring lands specifically designed to handle the abuse of power adders. Every set is supplied complete with plasma moly 1/16, 1/16, 3/16 pre-gapped ring packages that deliver excellent cylinder seal, reduced internal friction, and long service life. Wrist pins and circlips are included. Critical fitment notes: this is a 0.5mm oversize set requiring machine work to bore the factory G4KF block from 86mm to 86.5mm -- only fits the 2.0L Turbo Genesis Coupe, not the 3.8L V6. For standard-bore replacement at 86mm, see Wiseco K651M86. Top end bearings and rod work sold separately as required by the build.