
S&S CYCLE 136" Big Bore Cylinder Kit
In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
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In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
Upgrade your Harley-Davidson with the 136" Big Bore Cylinder Kit, designed for maximum performance. This bolt-on kit allows the largest cylinder bore possible without the need for machining the crankcases. It includes MLS (multi-layered steel) head gaskets and a cam cover badge for a complete installation.
The kit is compatible with 107"/114"/117" engines, elevating your displacement to an impressive 136". It retains original engine serial numbers and maintains the stock engine height, ensuring a seamless integration. Please note that an S&S stroker 4.625" flywheel is required and sold separately. Proudly made in the USA.
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Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.
If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.
In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.
To exercise this right, contact us via email or through our website, providing your order number and contact details.
If you want to return an item, please contact us first to give you detailed instructions.