ENGINE SECTION RED PART NUMBERS INDICATE NEW PARTS 6-29 1 2 3 4 5 6 7 8 9 10 11 CONTENTS ELECTRICAL FRAME FRONT END CONTROL WHEEL ENGINE DRIVE TRAIN FUEL EXHAUST GENERAL REFERENCE Valve Train Component Kits VALVE TRAIN COMPONENT KITS FOR BIG TWIN MODELS (CONT) Application Max Valve Lift Part # Fits 1984/1999 Evolution .600” 61339 Fits 1999/2004 Twin Cam 88” .600” 61345 Fits 2005/2017 Twin Cam 103” .610” 61347 Fits 2017/Later Milwaukee-Eight® .465” 61348* 1984/1999 Evolution Kit installs at 163# @ 1.810” / 361# at max lift of 0.600” Spring Kit includes dual springs, steel retainers, keepers, bases, and steel clad viton seals for 0.420” valve guide tops Kit supplies approximately 25% more seat pressure than stock to prevent valve bounce. It supplies approximately 10% more force than stock at .500” lift, and will take up to .600” lift.Valves Black Diamond™ forgings from 21-4N (EV8) high temp valve steel. Int. 1.840” x 0.310” x 4.445” / Ex. 1.615” x 0.3096” x 4.525” 1999/2004 Twin Cam Dual Spring Kit installs at 163# @ 1.810”” / 361# at max lift of 0.600” Spring Kit includes dual springs, steel retainers, keepers, bases, and steel clad viton seals for 0.420” valve guide tops Kit supplies approximately 25% more seat pressure than stock to prevent valve bounce. Supplies approximately 10% more force than stock at .500” lift. Good for up to .600” lift.Valves Black Diamond™ forgings from 21-4N (EV8) high temp valve steel. Int. 1.840” x 0.310” x 4.445” / Ex. 1.565” x 0.3095” x 4.505” 2005/2017 Twin Cam with 7.0mm Valve Stems Beehive Spring kit installs at 175# @ 1.860” / 400# @ max lift of 0.610” Kit Includes ovate wire progressive wound, beehive springs, steel retainers, forged triple bead keepers, steel bases and steel clad viton seals for 0.562” guide tops.This kit supplies approximately 20% more seat pressure than stock to prevent valve bounce, and approximately 18% more open pressure at .500” lift. Good for up to 0.610” lift.Valves Black Diamond™ forgings from 21-4N (EV8) high temp valve steel. Int. 1.805” x 0.2760” x 4.420” / Ex. 1.575” x 0.2755” x 4.520” *This material has higher nickel and chrome content than 21-4N/EV8. This material was chosen because of the relatively small stem diameter and the high exhaust temps in this application. 2017/Later Milwaukee-Eight® Beehive Spring Kit installs at 80# @ 1.410” / 212# @ max lift of 0.465”. Kit includes ovate wire progressive wound, beehive valve springs, steel retainers, forged triple bead keepers, steel spring bases, and tophat style viton seals. Gives 30% more seat pressure to prevent valve bounce, and approximately 15% more open pressure at the stock 0.375” valve lift. Good for up to 0.465” lift. Intake Valve White Diamond™ forgings from 21-4N (EV8) high temp valve steel with induction hardened tips and keeper grooves. 1.571” x 0.2347” x 4.015”. Exhaust Valve- White Diamond™ forgings from 23-8N* (EV16) high temp with induction hardened tips and keeper grooves. 1.264” x 0.2342 x 4.050”. *This material has higher nickel and chrome content than 21-4N/ EV8. This material was chosen because of the relatively small stem diameter and the high exhaust temps in this application. 61339 61345 61348 61347
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