Indian Motorcycle Thunder Stroke 116 ci Stage 3 Big Bore Kits

This Stage 3 Performance 116 ci Big Bore Kit transforms a Thunder Stroke 111 into a high-performance 116-ci power plant delivering 20% more horsepower and 15% more torque. This kit contains everything needed for the engine, including: connecting rods, new cylinders, big bore pistons, larger throttle body, and more. Also requires Stage 1 Exhaust, Exhaust Tips, and Thunder Stroke Stage 1 Performance Air Intake or Thunder Stroke High Flow Air Intake (each sold separately).

 Dealer installation REQUIRED. Does not void factory warranty.

This complete kit conveniently includes the required Calibration Code that upgrades the Engine Control Module (ECM) software from stock to Stage 3, allowing this kit to be properly installed by your dealer. No additional software purchase necessary. Each kit is designated with a warning triangle to indicate the restrictions that may apply.

• Also requires Exhaust, Exhaust Tips, and Performance Air Cleaner or Thunderstroke High Flow Air Cleaner (each sold separately).

Designed to Fit: 2019 Springfield Dark Horse, Springfield, Roadmaster, Chieftain Limited, Chieftain Dark Horse, Chief Vintage, and Chief Dark Horse

Orders $89 and over qualify for free standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

Orders under $89 qualify for $4.99 standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

P.O. Box Shipping. If you list a PO Box and select free shipping, please add a customer note with your order including a physical shipping address. We will ship to a PO Box if the shipping is comparable to other carriers. Otherwise we may need to ship to physical address or charge additional shipping fees.

Learn about additional details and restrictions by reading our full Shipping Policy

If your order arrives and it is not right, we’ll fix it…period. Doesn't fit or you're simply not happy with your item? Return any new, unused and unaltered item within 30 days of delivery of your item. Learn about additional details and restrictions by reading our full return policy.