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S&S Cycle
S&S Cycle 99-06 BT T134 Assembled Long Block Engine - Wrinkle Black
SKU: S0GE 310-0737A
Advanced — 4+ hours
Description
Part #: 310-0737A
S&S T143 Long Block Engine for 1999-'06 HD big twins (except Dyna models) as 143" displacement yet fits in a stock chassis. If Bigger is Better, the T143 is the Best, The Biggest, baddest, bolt-in for a Stock Frame. All joking about size aside, it does matter. The S&S T143 Long Block engine for is the largest S&S engine that will fit in a stock Harley-Davidson chassis. It's big, 143 cubic inches. At double the HP of a stock motor, the power of the T143 requires technical expertise for the installation and tuning along with an experienced rider. This is an ultra performance/race engine. Longevity, engine noise, vibration and throttle sensitivity have all been compromised to reach this level of performance while fitting in a stock chassis and as such is not suitable for every situation.
MIA's Description
Fitment
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Specifications
| Brand | S&S Cycle |
| Part Number | S0GE 310-0737A |
Videos
S&S Cycle - 143 Cubic Inch, 9 Second H-D® Road Glide®
S&S T143 instal videos
Harley Davidson Dyna 143 Acceleration
S&S Cycle - PROJECT DRAGON 143 - Custom T143 Drag Strip Bagger
Considering an S&S Crate Motor? Here's How Much Mine Cost.
Making the T143 Engine - S&S Cycle's Biggest Bolt-In Motor
S&S Cycle - The Birth of the T143
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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