ENGINE SECTION RED PART NUMBERS INDICATE NEW PARTS 6-30 1 2 3 4 5 6 7 8 9 10 11 CONTENTS REFERENCE GENERAL EXHAUST FUEL DRIVE TRAIN ENGINE WHEEL CONTROL FRONT END FRAME ELECTRICAL Valve Seats & Lower Collars • These re-engineered stock pieces offer installation advantages and years of trouble free service. • Manufactured from specially heat treated Chrome-Moly material and black oxided. • 61374 adds .030” to spring travel. • 61373 adds .050” to spring travel. KPMI’s proprietary seat material is compatible with leaded and unleaded fuels including methanol and ethanol fuel blends. This material offers excellent thermal characteristics and resists microwelding that leads to seat and valve face recession. Leading edge has generous radius to ease installation. Model & Year Part # Panhead & Shovelhead 1948/Early 1979 61374 Ironhead Sportster 1957/Early 1983 61373 LOW PROFILE LOWER COLLAR KITS FOR SOME BIG TWIN & SPORTSTER REPLACEMENT VALVE SEATS FOR BIG TWIN & SPORTSTER Application Type O.D. I.D. Height Part # Panhead 1948/1965 Intake 2.007” / 50.98mm 1.562” / 39.67mm .450” / 11.43mm 61300 Shovelhead 74ci Intake 2.164” / 54.97mm 1.750” / 44.45mm .450” / 11.43mm 61315 1966/1977 Exhaust 2.060” / 52.32mm 1.562” / 39.67mm .450” / 11.43mm 61344 Shovelhead 80ci Intake 2.164” / 54.97mm 1.750” / 44.45mm .450” / 11.43mm 61316 1978/1983 Exhaust 2.060” / 52.32mm 1.562” / 39.67mm .450” / 11.43mm 61317 Evolution 1984/1999 & Intake 1.969” / 50.00mm 1.535” / 39.00mm .453” / 11.50mm 61320 Twin Cam 88-103ci Intake 2.007” / 50.98mm 1.562” / 39.67mm .450” / 11.43mm 61321 1999/2017 Intake 2.132” / 54.15mm 1.690” / 42.93mm .450” / 11.43mm 61322 Exhaust 1.757” / 44.62mm 1.375” / 35.00mm .450” / 11.43mm 61323 XL Models 1957/1969 Intake 2.132” / 54.15mm 1.690” / 42.93mm .450” / 11.43mm 61306 Exhaust 1.757” / 44.62mm 1.375” / 35.00mm .450” / 11.43mm 61301 XL Models 1970/1983 Intake 2.132” / 54.15mm 1.690” / 42.93mm .450” / 11.43mm 61309 Exhaust 1.757” / 44.62mm 1.375” / 35.00mm .450” / 11.43mm 61307
RkJQdWJsaXNoZXIy MzYzNTI=