Speedo Seats & Luggage- racks Frame Chassis Suspension Forktubes Wheels Brake Fenders Gastanks Motorparts Gaskets Intake Transmission & Driveline Exhaust Electrical & Lights Handlebars, Cables & Mirrors Oil tanks Oil & Chemicals Fasteners Windshields Forward controls, Footpegs Miscellaneous MOTOR PARTS - TOP END 10 699 AFTERMARKET PARTS & ACCESSORIES FOR CUSTOM MOTORCYCLES / MOTORCYCLESTOREHOUSE.COM MANLEY SD, STAINLESS STEEL VALVES Manley's high performance Severe Duty valves. Proven quality over many years. Manufactured from high temperature stainless alloy to a perfect finish. Manley valves feature swirl polished, performance orientated shapes and durable chrome plated stems. Up to 30% weight reduction over stock components. Manley's 'Severe Duty' valves insure a stable valve train, even at high R.P.M.'s. 05-17 TWIN CAM Nr. Applic. Head ø Stem ø Length Stock replacement Note: Race Master series quality. Valve stem stock 7mm (.2755"). 501279 Intake 1.805" (std.) .2755" (std.) 4.425" (std.) 501286 Intake 1.900" O.S. .2755" (std) 4.425" (std.) 501278 Exhaust 1.575" (std.) .2755" (std.) 4.520" (std.) 501287 Exhaust 1.625" O.S. .2755" (std) 4.520" (std.) 86-03 EVO XL 883-1200 CONVERSION Nr. Applic. Head ø Stem ø Length 883-1200 conversion 513861 Intake 1.715" .3100" std. 883 513862 Exhaust 1.48" .3095" std. 883 Note: To be used on 86-03 883 XL Sportster models that have been converted to 1200cc. Valve length is same as stock 883 XL Sportster, valve head diameter is same as stock (larger) 1200cc XL Sportster models. This improves breathing so you can achieve full benefits from the 883 - 1200 conversion. 70-85 XL SPORTSTER Nr. Applic. Head ø Stem ø Length Stock replacement 513835 Intake 1.938" (std.) .309" (std.) std. 513800 Exhaust 1.563" (std.) .3385 (std.) std. 48-65 PANHEAD Nr. Applic. Head ø Stem ø Length Stock replacement 513825 Exhaust 1.75" (std.) .3745" (std.) std. 57-69 XL SPORTSTER Nr. Applic. Head ø Stem ø Length Stock replacement 513840 Intake 1.813" (std.) .309" (std.) std. 513800 Exhaust 1.563" (std.) .3385 (std.) std. 86-03 EVO XL SPORTSTER 883 Nr. Applic. Head ø Stem ø Length Stock replacement 513826 Intake 1.585" (std.) .3100" (std.) std. 513827 Exhaust 1.345" (std.) .3095" (std.) std. 86-03 EVO XL SPORTSTER 1100 & 1200 Nr. Applic. Head ø Stem ø Length Stock replacement 513828 Intake 1.715" (std.) .3100" (std.) std. 513829 Exhaust 1.48" (std.) .3095" (std.) std. 66-83 SHOVELHEAD Nr. Applic. Head ø Stem ø Length Stock replacement 513820 Intake 1.938" (std.) .3765" (std.) std. 513825 Exhaust 1.75" (std.) .3745" (std.) std. 99-04 TWIN CAM Nr. Applic. Head ø Stem ø Length Stock replacement With 5/16" valve stem. 501275 Intake 1.85" (std.) .310" (std.) std. 501277 Exhaust 1.565" (std.) .3095" (std.) std. 84-99 EVO BIG TWIN Nr. Applic. Head ø Stem ø Length Stock replacement 501275 Intake 1.85" (std.) .310" (std.) std. 501270 Exhaust 1.615" (std.) .3095" (std.) std. O.S. heads 513866 Intake 1.94" O.S. .310" (std) std 501281 Intake 2.00" O.S. .310" (std.) std. 501282 Exhaust 1.65" O.S. .3095" (std.) std. Evo Big Twin intake valves are identical to 99-04 Twin Cam valves. Evo exhaust valves are 1.615", Twin Cam 1.565" in diameter. Length is identical. 1.615" valves can be installed on stock seats of Twin Cam models, after valve seat machining. Information supplied by Manley Performance Products, Inc. tech-tip 40 note Manley valves can be used with KPMI cast iron or C630 bronze guides with excellent results. SEVERE DUTY VALVES
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