Page 101 of High Performance Parts for American V-Twins 2008 by S&S Cycle

1958-2008 50th ann iversary s&s® 72 and 74 stroker kits for 1972 85 ironhead sportster® models s&s offers two strokers for 1000cc harley-davidson® sportster® ironhead models the 72 kit is built around s&s 41/2 stroke flywheels and the 74 kit uses flywheels with 45/8 stroke these kits are available only for 1000cc engines with 33/16 bore cylinders stroker pistons must be purchased separately and are available in standard oversizes cylinders for ironhead sportster models are not available from s&s note that this kit requires special s&s pistons order the required piston oversize from the chart below s&s® stock bore stroker kits for harley-davidson® ironhead sportster® models displacement 72 74 stroke 41/2 45/8 bore 33/16 33/16 compression ratio 8:1 9:1 piston type forged forged cylinder length stock stock application short trips street strip short trips street strip engine life fair fair order pistons separately see chart below s&s® stock bore stroker kits for harley-davidson® ironhead sportster® models displacement 72 74 stroke 41/2 45/8 bore 33/16 33/16 engine life fair fair 1972 76 32-3051 32-3054 msrp $1,084.95 $1,084.95 1977 81 32-3052 32-3055 msrp $1,089.95 $1,089.95 1981 85 32-3053 32-3056 msrp $1,124.95 $1,124.95 custom flywheels 32-3011 32-3060 msrp $404.95 $404.95 note order pistons separately see chart below custom flywheel price does not include rods shafts or assembly charges this kit requires special s&s pistons order the required piston oversize from this chart 92-3700 series forged pistons for s&s® 72 and 74 stroker kits oversize 010 020 030 040 050 060 070 080 part no 92-3701 92-3702 92-3703 92-3704 92-3705 92-3706 92-3707 92-3708 msrp $249.95 $249.95 $249.95 $249.95 $249.95 $249.95 $249.95 $249.95 order toll free 866-244-2673 3-42

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