REFERENCE SECTION 11-61 REFERENCE SECTION 11-61 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 Engine Specifications Threads per inch Wrench Flats Total Travel Distance 24 15 .1042” 28 17 .1011” 32 18 .0937” 36 21 .0965” 40 24 .100” 52 30 .0962” Bore (Inches) Stroke (Inches) 3.000 3.1875 3.25 3.3125 3.350 3.375 3.4375 3.5 3.625 3.8125 4 4.25 4.5 3.8125 53.9 60.8 63.2 65.7 67.2 68.2 70.7 73.3 78.7 87.0 95.8 108.2 121.3 4.0625 57.4 64.8 67.4 70.0 71.6 72.6 75.3 78.1 83.9 92.8 102.1 115.3 129.2 4.1875 59.1 66.8 69.4 72.1 73.8 74.9 77.7 80.5 86.4 95.6 105.2 118.8 133.2 4.3125 60.9 68.8 71.5 74.3 76.0 77.1 80.0 82.9 89.0 98.5 108.4 122.4 137.2 4.4375 62.7 70.8 73.6 76.4 78.2 79.3 82.3 85.3 91.6 101.3 111.5 125.9 141.2 4.5 63.6 71.8 74.6 77.5 79.3 80.5 83.5 86.5 92.8 102.7 113.1 127.7 143.1 4.625 65.3 73.8 76.7 79.7 81.5 82.7 85.8 88.9 95.5 105.6 116.2 131.2 147.1 4.8125 68.0 76.9 79.8 83.0 84.8 86.0 89.3 92.5 99.4 110.0 121.1 136.5 153.1 5 70.6 79.8 82.9 86.2 88.1 89.4 92.7 96.1 103.1 114.1 125.7 141.9 159.0 5.125 72.5 81.8 85.0 88.3 90.3 91.7 95.1 98.6 105.8 117.0 128.8 145.4 163.0 5.25 74.2 83.5 87.1 90.5 92.5 93.9 97.5 101.0 108.4 119.9 132.0 149.0 167.0 5.5 77.8 87.8 91.3 94.8 97.0 98.4 102.1 105.8 113.5 125.6 138.2 156.0 175.0 Stock 883cc = 3.000” Bore by 3.8125” Stroke Stock 1000cc = 3.1875” Bore by 3.8125” Stroke Stock 1100cc = 3.350” Bore by 3.8125” Stroke Stock 1200cc = 3.5” Bore by 3.8125” Stroke Charts are listed in cubic inches. Cubic Inch = Cubic Centimeters x .061. BIG TWIN ENGINE DISPLACEMENT SPORTSTER ENGINE DISPLACEMENTS STANDARD OUTSIDE DIAMETERS FOR BEARING RACES & BUSHINGS TWIN CAM AND EVOLUTION PUSHROD ADJUSTMENTS Bore (Inches) Stroke (Inches) 3.4375 3.5 3.625 3.6875 3.75 3.8125 4 4.25 4.375 4.5 4.75 3.96875* 73.6 76.3 81.8 84.7 87.6 90.6 99.7 112.6 119.3 126.2 140.7 4.25** 78.8 81.7 87.6 91.0 93.8 97.0 106.8 120.6 127.8 135.2 150.6 4.5 83.5 86.5 92.8 96.1 99.3 102.7 113.1 127.7 135.3 143.1 159.9 4.625 85.8 88.9 95.5 98.8 102.2 105.6 116.2 131.2 139.1 147.1 163.9 4.75 88.1 91.3 97.9 101.4 104.8 108.5 119.4 134.8 142.8 151.1 168.3 5 92.7 96.1 103.1 106.8 110.3 114.1 125.7 141.9 150.3 159.0 177.2 5.125 95.1 98.6 105.8 109.5 113.2 117.0 128.8 145.4 154.1 163.0 181.6 5.25 97.5 101.0 108.4 112.1 116.0 119.9 132.0 149.0 157.8 167.0 186.1 5.5 102.1 105.8 113.5 117.5 121.5 125.6 138.2 156.0 165.4 175.0 194.9 24585-39 = 1.753 24610-39 = 1.753 25586-37 = .9405 25597-36 = 1.0035 24585-57 = 1.7515 24621-40 = 2.0015 25588-57 = 1.3775 25597-57 = .815 24595-40 = 2.0015 25581-36 = 1.0035 25591-37 = .9410 33288-37 = .940 24599-40 = 2.0015 25581-70 = 1.2015 25593-37 = .8775 35105-52 = 1.5635 24599-55 = 2.0015 25582-36 = 1.0015 25593-57 = .8775 35125-37 = 2.314 24599-58A = 2.1270 25582-54/73 = 1.0035 25593-74 = .8150 Chart reprinted courtesy of Jims. Jims high quality motor parts and tools can be found throughout this catalog. When installing adjustable pushrods with hydraulic tappets in Evolution models, careful attention must be paid to proper adjustment. Determine the threads per inch at the adjuster of the pushrod you are using and use the chart provided to determine the correct adjustment. Disregard these adjustments when using hydraulic tapped limiters or lifters that require zero lash. *Stock 74” = 3.4375” Bore by 3.96875” Stroke **Stock 80” = 3.5” Bore by 4.25” Stroke Stock 88” Twin Cam = Bore 3.750” by 4.00” Stroke Non-Stock 95” Twin Cam = 3.875” Bore by 4.00” Stroke Stock 96” Twin Cam = 3.750” Bore by 4.375” Stroke Stock 103” Twin Cam = Bore 3.875” by 4.375” Stroke Stock 110” Twin Cam = Bore 4.00” by 4.375” Stroke
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