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S&S 110" Big Bore Kit for 2007-2017 Harley Twin Cam

S&S 110" Big Bore Kit for 2007-2017 Harley Twin Cam

This part is bike specific. It will not fit all makes / models / years.

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Product Overview

Inspired by our Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. Bolt-in kits do not require machining, rebalancing or engine removal, and include just about everything you’ll need to complete the installation. The biggest cylinder bore that can be installed in a stock crankcase without machining! When big enough isn't big enough.........S&S!

Features & Benefits

Low friction Ductile Cast Iron line
10.5:1 Compression -Bolts in. No machining, balancing, or splitting the crankcases
96 and 103" engines are boosted to 110"
Complete kits include cylinders, pistons, gaskets, and instructions
Wrinkle black cylinders – matches stock finish

not for use with 79cc heads

Compression ratio with stock heads is 10:5:1
Compression ratio with 89cc heads is 10.2:1
Compression ratio with CNC 83cc heads is 10.7:1


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