BOLD MAGENTA part numbers are new for 2023 PARTS-UNLIMITED.COM 2023 | STREET ENGINE 1350 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. SEE PAGES 4-5 FOR IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. DESCRIPTION PART # SUG. RETAIL 170cc Big Bore kit 0903-1124 $384.95 61mm forged piston kit 0910-3676 110.95 Camshaft 0925-0893 159.95 DESCRIPTION PART # SUG. RETAIL Banjo bolt kit 0932-0105 $16.95 Gasket kit 0934-3478 33.95 170CC BIG BORE KIT FOR HONDA GROM 14-20, MONKEY 19-20 • Includes ceramic coated cylinder, 61mm forged piston, rings, pin, gasket kit and banjo bolts • Compression ratio of 11.5 to 1 • Optional camshaft kit can be used with stock engine, but delivers improved results when used with 170cc Big Bore kit NOTE: PART #0903-1124 requires PART #s 1022-0227, 1021-0013 and 0932-0167. DESCRIPTION PART # SUG. RETAIL 4V head kit w/ 170cc Big Bore kit 0950-0754 $1,039.95 4V head kit only 0950-0755 749.95 4V HEAD KITS FOR HONDA GROM 14-20, MONKEY 19-20 • Ideal engine part to complete KOSO’s Big Bore kit • Unique four-valve design increases air flow and performance • Provide more power and torque • Feature a forged piston, stainless steel 24mm intake valves and 20mm exhaust valves NOTE: PART #0950-0754 requires PART #s 1010-1865, 1022-0154, 1050-0344, 1050-0345, 1022-0153, 1022-0227, 1021-0013, 0932-0167 and 2103-0362. NOTE: PART #0950-0755 for use with 0903-1124 only.Also requires PART #s 1010-1865, 1022-0154, 1050-0344, 1050-0345, 1022-0227, 1021-0013, 0932-0167 and 2103-0362. PART # SUG. RETAIL 0932-0167 $53.95 HIGH-FLOW OIL PUMP FOR HONDA GROM 14-20, MONKEY 19-20 • Increases the oil flow by 40%, helping to prevent engine failure • Keeps the engine lubricated to optimize performance • Recommended for bikes with upgraded engines using the KOSO North America 170cc Big Bore kit and 4V cylinder head kit (sold separately; see above and at left) 0903-1124 0910-3676 0932-0105 0925-0893 0934-3478
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