S&S Cycle HP103 Cam Kit For Harley Twin Cam 1999-2006

S&S Cycle HP103 Cam Kit

Forged through hundreds of brutal hours on the dyno, the asphalt, and the track, these S&S cams are dialed in to unleash unapologetic, raw power the second you twist the throttle. This isn’t off-the-shelf guesswork—it’s precision-engineered muscle built to dominate every mile of pavement you take on.

Features:

• Designed as bolt in cams for engines with 103" and stock 9.7:1 compression ratio up to 10.5:1
• Works with stock, un-ported heads, but is great for S&S CNC ported heads
• Power in 3000 rpm - 6000 rpm range
• Requires high-lift valve springs
• Made in the USA

Cam Specs:

• Intake Lift: 0.575"
• Exhaust Lift: 0.575"
• Intake Lift at TDC: 0.199"
• Exhaust Lift at TDC: 0.206"
• Intake Open: 20°
• Intake Close: 49°
• Exhaust Open: 45°
• Exhaust Close: 26°
• Intake Duration: 249°
• Exhaust Duration: 251°
• Intake Lobe Centerline: 104.5°
• Exhaust Lobe Centerline: 99.5°