S&s Cycle Super Stock Cylinder Head Kit - 90-1293 For Harley Motorcycles 1999-2005 Suspension control and a modern style

control and a modern style

35 mm monotube construction

all laid over the easy to install Stealth Air Cleaner system

turn and brake operation

S&s Cycle Super Stock Cylinder Head Kit - 90-1293 For Harley Motorcycles 1999-2005 Suspension control and a modern styleFeatures High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications 79cc heads work great with stock motors for 88" to 103" motors; 89cc heads work best for motors over 103" or with high compression pop up pistons 79cc have