• Your choice of natural aluminum, black powdercoat, or poilished finish
• Engine patterned from S&S Pro Stock 160" record-setter
• Utilizes Hi-Performance crankshaft featuring 1.5" diameter pressed-in crank pin for superior strength
• Massive 4-1/8" bores with a stroke of 4-5/8"
• High-Performance oiling system, high-flow cylinder heads and added cooling fins are state-of-the-art for optimum horsepower and torque
• Includes installed electric compression releases
• Evolution-style mounting
• S&S variable fuel injection system sold separately
• 124" Dyno tested at 130+ horsepower at the rear wheel
• These engines come with a 12-month manufacturer's warranty

49-9547 natural finish
49-8583 natural finish with IST ignition
49-9972 black finish
49-8584 black finish with IST ignition
49-9975 polished finish
49-8585 polished finish with IST ignition