UP FOR SALE IS OUR NEW JDM B18C INTEGRA TYPE R  PRESS FIT PISTON AND RING SET. THIS IS FOR A COMPLETE SET OF 4 BRAND NEW PISTONS AND NPR RINGS. NIPPON RACING HYPEREUTECTIC P73-00 PISTONS ARE A PERFECT ADDITION TO ANY HONDA B SERIES ALL MOTOR ENGINE BUILD. 
 
THESE PISTONS ARE IN 81MM  SIZE. WE ALSO HAVE THEM AVAILABLE IN 81MM/81.50MM/82MM/84MM/84.50MM/85MM. SEE OUR OTHER LISTINGS FOR AVAILABLE SIZES.

COMPRESSION RATIOS ARE AS FOLLOWS:

81MM B18A/B W/PR3 HEAD 11.8:1

81M B18A/B W/P72 HEAD 12:1

81MM B18C W/PR3 HEAD 11.4:1

81MM B18C W/P72 HEAD 11.7:1

ADD .02 FOR EVERY .50MM IN INCREASED DIAMETER

 
NIPPON RACING P73-00 PISTONS ARE HEAT TREATED AND COME WITH A CERAMIC HARD ANODIZED SURFACE DOWN TO THE SECOND RING GROOVE TO IMPROVE HEAT DISSIPATION AS WELL AS USE WITH NITROUS. PISTONS ARE EQUIPPED WITH 4 CRYOGENICALLY HEAT TREATED 21MM WRIST PINS AND TEFLON COATED SKIRTS.  ALL NIPPON RACING PISTONS SETS ARE WEIGHT MATCHED TO +/- 1 GRAM. NIPPON RACING PISTONS HAVE DEEPER VALVE POCKETS THAN TRADITIONAL P73 PISTONS TO ALLOW USE OF AFTERMARKET PERFORMANCE CAMSHAFTS UP TO STAGE 3. THESE ARE TRUE HIGH PERFORMANCE RACING PISTONS WITH A HORSEPOWER RATING OF 600 HP.

NEW ADDITION, ROD HOUSING HAS BEEN EXPANDED SO THERE IS NO NEED FOR CUSTOM MILLED RODS WITH THESE PISTONS

THIS KIT IS A PRESS FIT PISTON SET MEANING THEY ARE DESIGNED TO BE USED WITH OEM ORIGINAL HONDA RODS. SEE OUR OTHER LISTINGS FOR ROD AND PISTON KIT COMBOS.

 
NIPPON RACING PISTONS ARE MADE USING 2618 ALLOY AND  PROPRIETARY CENTRIFUGAL SPIN CASTING PROCESS AS WELL AS A 6 STEP HEAT TREATMENT PROCESS TO INSURE A PISTON THAT IS JUST AS HARD AS A FORGED PISTON BUT WITH A MUCH LOWER EXPANSION RATE THAN FORGED PISTONS MEANING ENGINES ASSEMBLED WITH NIPPON RACING PISTONS WILL OUTPERFORM OEM PISTONS BY 300% AND ENSURE A PROLONGED ENGINE LIFE. THIS PROCESS INSURES ZERO INTERNAL DEFECTS FROM THE FACTORY AND ARE GUARANTEED TO OUTPERFORM ANY OTHER PISTON MANUFACTURERS CAST PISTONS ON THE MARKET TODAY. NIPPON RACING OFFERS A LIMITED LIFETIME GUARANTEE AGAINST ANY MANUFACTURERS DEFECTS ON ALL OF THEIR PISTONS. NIPPON RACING LTD HAS BEEN MANUFACTURING ALUMINUM COMPONENTS IN JAPAN FOR OVER 40 YEARS. DON'T BE FOOLED BY CHEAP IMITATIONS OR OTHER VENDORS ON EBAY USING OUR NAME. UYUNIRA IS THE ONLY AUTHORIZED E-DISTRIBUTOR IN THE USE FOR NIPPON RACING LTD PRODUCTS. ALL NIPPON RACING LTD PRODUCTS ARE MADE IN JAPAN.