• Options available for S&S 124" your choice of natural aluminum, black powder coat or polished 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
• 134" Dyno tested at 130+ HP at the rear wheel
• Evo-style mounting
• Features S&S Super G carburetor
• Includes S&S 640G camshaft
• These engines come with a 12-month manufacturer's warranty. Any motor featuring the IST ignition comes with an additional 12-month manufacturer's warranty for a total of 24 months.
• Engines with IST feature a special billet gear cover and are available only with billet tappet guides

49-6434 natural finish (black and polished unavailable)