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Engines and Components› Crankshafts and Components

S&S Cycle

1250cc Big Bore Kit 11.2:1 Compression Ratio

$1,822.95 $1,640.66 Save $182.29

SKU: 0903-1302

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In Stock
Ships by Aug 4
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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This kit offers a significant displacement increase to 1250cc with a 11.2:1 compression ratio, providing enhanced performance for street riding. The Hooligan Kit features S&S bolt-in cams with .482" lift, 240° intake duration, and 234° exhaust duration, paired with premium tappets to maximize the benefits of the added displacement. A key advantage of this kit is its easy, bolt-on installation. This simplifies the upgrade process and minimizes downtime. This kit is specifically designed for Harley-Davidson Sportster models from 2000-2022. The manufacturer recommends consulting their catalog and website for the most precise fitment information, as modifications or accessories may affect compatibility.

MIA's Description

This kit allows for an easy, bolt-on installation without requiring machining or rebalancing. It increases displacement to 1250cc with a compression ratio of 11.2:1.

Fitment

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Specifications

BrandS&S Cycle
Part Number0903-1302
CategoryEngines and Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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