Product Description
S&S T124 Long Block Twin Cam Engine
Engines are sold as 'Long Blocks', meaning these are engines without any intake components or ignition. Any high performance intake system, that will fit a stock engine, will fit the S&S 124" since S&S specially machined the heads to compensate for cylinder length. Stock compatible air cleaners and breathers will fit.
Engines are available in High Compression (10.8:1 CR flat top forged pistons, with 640GP easy-start cams) and Low Compression (10.2:1 CR dished forged pistons, with 585GP easy-start cams). Low compression is less sustainable to knocking and will give longer engine life. If you prefer all out high RPM horsepower numbers, the high compression engine is the one.
S&S T124 Owners Manual available here
Note: Sold as 'Long Block' engine. Carburetor / throttle housing, manifold, ignition and charging system is not included.
Note: A large throttle housing and high performance ECU is required for best performance. Carbureted engines will require a ignition system with adjustable advance curves and large carburetor, as the S&S Super G or similar.
Note: Charging system requires an early style sprocket shaft spacer, available as S&S A077-493482, with dimensions of 1.750" OD x 1.255" ID x 1.095" thick.
Note oil lines:
- 99-05 Dyna requires a oil line installation kit, which is no longer available. Custom fabrication is required.
- 99-06 Touring requires A299-804704 oil line installation kit.
- 07-16 Touring requires A541-438946 oil line installation kit.
- 06-17 Dyna requires A666-461071 oil line installation kit.
Variant: 99-05 Dyna & 99-06 Touring - High Compression
SKU: A120-467525
MPN: 310-0282A
DPN: 565120
Variant: 99-05 Dyna & 99-06 Touring - Low Compression
SKU: A124-467529
MPN: 310-0326A
DPN: 565124
Variant: 06-17 Dyna - High Compression
SKU: A908-491313
MPN: 310-0882A
DPN: 588908
Variant: 07-16 Touring - High Compression
SKU: A907-491312
MPN: 310-0400A
DPN: 588907
Variant: 07-16 Touring - Low Compression
SKU: A906-491311
MPN: 310-0401A
DPN: 588906
Shipping and Delivery Times
All orders are shipped from our warehouse in Falkenberg, Sweden. We work hard to get them moving quickly!
Stock status explained:
- In stock: Ready to ship to you within the time listed. Packages usually arrive 2–4 business days after dispatch depending on your location.
- Sold Out: Currently out of stock at Customhoj, but we expect to have it back soon! Please feel free to contact us for information on when the product will be available again.
If a product has multiple variants (like sizes or colors), the stock status updates automatically as you select your option.
Our goal is simple, to get your order to you as fast as possible!
30-Day Hassle-Free Returns - No Questions Asked
If you are not entirely satisfied with your order, whether you need to change sizes or something else, we offer a full 30-day return policy from the day you receive your order. Return shipping costs apply.
Please note that the right to return does not apply to products that are personalized, or manufactured upon order. See our return policy for complete details and conditions.
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