What is required after installing this big bore kit?

After installing this 106" Big Bore Hot Set Up Kit, your motorcycle's EFI system must be recalibrated. For best results, a larger throttle body, performance air cleaner, and performance exhaust are also recommended.

Do I need to remove the engine from my motorcycle to install this kit?

No, the engine does not need to be removed from the chassis for installation. This kit is designed for easy installation without requiring the engine to be removed or the chassis to be modified.

What is the compression ratio of the engine after installing this kit?

With the included components, the engine will achieve a compression ratio of 10:1. The cylinders are stock height, so you won't encounter frame clearance issues.

Specifications

Brand: S&S Cycle
Part #: 900-0354
UPC: 900-0354

S&S Cycle 07-17 BT S&S 106in Big Bore Hot Set Up Kit w/o Cylinder Heads - Wrinkle Black

Name: S&S Cycle 07-17 BT S&S 106in Big Bore Hot Set Up Kit w/o Cylinder Heads - Wrinkle Black
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-07-17-bt-s-s-106in-big-bore-hot-set-up-kit-w-o-cylinder-head-t14-664119
Price: 2166.52 USD
Availability: BackOrder

$2166.52

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

This kit increases engine displacement to 106 cubic inches for 2007-2017 Big Twin motorcycles.
Includes S&S 3.927" bore pistons and big bore cylinders finished in wrinkle black powder coat.
Features S&S 585C chain drive Easy Start camshafts for easier starting.
Comes with S&S chromoly steel adjustable pushrods and high-performance tappets.
Achieves a 10:1 compression ratio with stock engine height, ensuring no frame clearance problems.
Stock EFI throttle body will fit, but EFI system recalibration is required.

This kit is designed for 2007-2017 Big Twin motorcycles. Please verify compatibility with your specific model.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

S&S Cycle has been building performance engine components for Harley-Davidson motorcycles for decades, known for their commitment to power and reliability. This 106 cubic inch Big Bore Hot Set Up Kit is designed to give your 2007-2017 Big Twin a significant boost in displacement and performance without requiring major engine work.

What makes this kit a great option is its straightforward installation. You won't need to machine your engine cases or rebalance the crankshaft, and the entire engine can stay in the motorcycle frame. This kit includes everything needed to increase your engine's size: S&S 3.927-inch bore pistons, big bore cylinders finished in a durable wrinkle black powder coat, S&S 585C chain drive Easy Start camshafts for improved starting, chromoly steel adjustable pushrods, and high-performance tappets. Once installed, your engine will achieve a 10:1 compression ratio. The stock height of the cylinders means you won't have frame clearance issues, and your stock EFI throttle body will still fit.

To get the most out of this engine upgrade, you'll need to recalibrate your EFI system. For optimal performance, S&S Cycle recommends pairing this kit with a larger throttle body, a performance air cleaner, and a performance exhaust system. Please note that this kit is not CARB approved and cannot be shipped to California.