ENGINE 248 COMPRESSION CYLINDER PISTON DISPL PISTON TOP END SUG. DLR. SALE FITS MODEL RATIO BORE (MM) DIAMETER (MM) VERSION KIT PART # RETAIL COST PRICE HONDA CR80R 90-91 STD 47.00 46.95 80 Cast Replica 0910-3359 N/A $78.00 $63.10 CRF250R 10-13 14.1:1 76.80 76.77 250 Forged High Comp 0910-3776 N/A 205.30 153.20 CRF450R 13-16 13.2:1 96.00 95.95 450 Forged High Comp 0910-3805 N/A 231.00 146.50 13.2:1 96.00 95.96 450 Forged High Comp 0910-3806 N/A 231.00 146.50 KTM 250 SX 05 STD 66.40 66.35 250 Cast Replica 0910-3373 N/A 140.40 94.70 SUZUKI RMZ250 07-09 13.9:1 77.00 76.96 250 Forged High Comp 0910-3773 N/A 177.90 141.60 RMZ250 13-15 13.9:1 77.00 76.95 250 Forged High Comp 0910-3811 N/A 182.00 139.20 TOP END PISTON KITS •All pistons are heat-treated with a T-5 hardening and tempering cycle •All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life •Cast piston kits are gravity-cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston •Forged pistons are forged from 2618 aluminum for superior strength and durability •Forged High Compression pistons improve power and torque across entire rpm range •Forged Replica pistons are forged OEM replacements •Replica pistons and all rings are OEM replacements •Top end piston kit includes piston, rings, pins, circlips, top end gaskets, wrist pin bearing when applicable and cam chain when applicable PISTON VERSIONS Cast Replica – Cast OE replacement piston Forged Replica – Forged OE stock compression piston Forged High Comp – Forged high compression pistons POWERSPORTS ULTRA SERIES PISTON KITS •In-house forging has allowed JE to develop proprietary Aligned Grain Flow Technology forging technology that directs the grain flow of the aluminum to flow around critical areas of the piston, increasing strength •Lateral gas ports channel combustion gases to the back of the top ring groove, which adds pressure behind the compression ring to keep it pushed against the cylinder, providing improved and more consistent ring seal, critical in boosted applications •Ultra-thick ring lands aid in maintaining ring stability in forced induction and high-horsepower N/A engines, contributing to consistent ring seal and consistent power •Thermal Barrier Crown Coating – a ceramic coating on the piston crown – greatly reduces heat transfer into the piston material, decreasing fatigue and improving longevity •Tuff Skirt – a proprietary, moly-based dry film skirt coating is applied in-house and reduces operating friction for better wear resistance •Accumulator groove provides additional volume to trap unwanted gases below the top ring to keep pressure low and ring seal and performance high •Double pin oilers – two oil channels feed into the pin bore to maintain proper lubrication to improve wrist pin and pin bore wear resistance •Includes upgraded 9310 wrist pins: stronger, thicker wrist pin material is designed to withstand additional loads of forced induction applications •Sold as a complete kit with all necessary pistons, rings, wrist pins and wire locks under one part number DISP. BORE COMP. SUG. DLR. SALE FITS MODEL (CC) (MM) OVERSIZE RATIO PART# RETAIL COST PRICE KAWASAKI ZX14 06-11 1417cc 86mm +2mm 13.5:1 0910-6394 $921.95 $760.47 $598.90 ZX14 12-19 1417cc 86mm +2mm 14.1:1 0910-6394 921.95 760.47 598.90 SUZUKI GSX1300R Hayabusa 99-07 1330cc 82mm +1mm 13.5:1 0910-6396 921.95 760.47 598.90 1429cc 85mm +4mm 13.5:1 0910-6399 921.95 760.47 598.90 GSX1300R Hayabusa 08-19 1407cc 83mm +2mm 13.5:1 0910-6401 921.95 760.47 598.90 0910-6394
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