S&S Cycle - S&S Performance Parts 2025 L - Volume 67

1999-'06

www.sscycle.com

OES: Original Equipment Specification (OES) A bolt-in replacement cam with stock cam timing is designed for riders with stock engines Does not require tuning Bolt-in stock Equivalent to HD® A-Grind 509: Designed as a bolt-in, high torque cam for 1999–'06 models 180 psi cranking compression, no need for compression releases For 88 CID engines with stock compression ratio Idle–4500 rpm Bolt-in torque 510: Designed as a bolt-in cam for 88, 95, and 96 CID engines with compression ratios below 9 7:1, it is primarily intended for use with stock, un-ported heads 3000–5500 rpm Bolt-in overall 551: Designed for engines with 96 to 106 CID and 9:1 to 9:9 compression this cam set designed for stock or mildly modified touring bikes 551 cams are not recommended for compression ratios of 10:1 or greater Greatly improves low-end and midrange torque, strongest from idle–4000rpm 570: Designed for 88 to 103 CID engines with compression ratios between 9:1 and 10:1 this cam will provide a nice power increase across the entire power band 3200–5700 rpm Excellent bolt-in for overall power on 103" 583: Optimized for use in the Softail®/Dyna® lines, this cam makes horsepower and torque that you can feel all the way through the rpm range, making the most power right where you need it:1500–5000rpm 583 cams are not recommended for enginess having comression ratios greater than 10 1:1 585: Designed for 88 to 95 CID engines with compression ratios from 9 7:1 to 10 5:1 and 100 to 124 CID engines from 9:1 to 10:1 compression Provides massive horsepower and torque increases starting at 3000rpm and holds steady all the way to redline 3500-6000 rpm for 88"–103" engines and 2500–5500 for larger engines 625: Cam set designed for 95" or larger engines with compression ratios between 10 0 and 10 75:1 3000–6000 rpm MR103: Designed as bolt-in cams for 103 CID engines with stock 9 7:1 compression ratio up to 10 5:1 Works well with stock, un-ported heads, but is great for S&S CNC ported heads More power across the rpm range best results form 2500–5500 rpm Bolt-in HP103: Designed as bolt in cams for engines with 103 and stock 9 7:1 compression up to 10 5:1 Works well with stock, un-ported heads, but is great for S&S CNC ported heads Best power in the higher rpm range, 3000–6000 rpm Bolt-in 635 H.O.: High lift cam for modified engines with 106" or greater displacement and compression ratios between 10 0:1 and 11 0:1 Works well with stock, un-ported heads, but S&S CNC ported heads are recommended Best power from 3000–6000 rpm This is not a bolt-in cam set High-lift springs and clearance checks are required

640: Used in S&S T124 engines, this cam makes horsepower! Intended for engines of 95 CID or more w/compression ratios between 10 5:1 and 11 5:1 3000-6000 rpm 675: A high lift monster, this cam set is designed for 120" or larger engines with at least 11:1 compression ratio 4500–6500 rpm

1 -2017-UP 2- 2007-'17 3 -1999-'06 4 -1984-'99 5 -1936-'84 6 -XL-RA1250 7 -BELTS & GASKETS 8 -TOOLS 9 -WARRANTY 10 -APPENDIX

Stock valve springs in 1999–’04 big twin models can handle cams with valve lifts as high as 515" Stock valve springs in 2005–'17 engines can accommodate valve lifts up to 590"

EO #D-355-14

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