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Feb 11, 2020
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S&S CYCLE
SKU: T14-664767
S&S Cycle Forged Rocker Arm Top End Kit - Milwaukee-Eight Harley-Davidson
$917.95
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About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
The S&S Cycle Top End Kit for Harley-Davidson Milwaukee-Eight engines provides a comprehensive valvetrain upgrade, bundling forged rocker arms, upgraded head bolts, rocker arm shafts, and stud kits into a single package. Each component is meticulously engineered to withstand the demands of high-horsepower builds, where stock parts might fall short. This kit is your answer for enhanced durability and performance in your M8 motor.
Why riders pick this
- Complete valvetrain upgrade for Milwaukee-Eight engines
- Includes forged rocker arms and stronger head bolts
- Designed for high-horsepower performance builds
- Enhances durability and reliability of the top end
- Fits Harley-Davidson Milwaukee-Eight models
When pushing the limits of your Milwaukee-Eight engine, every component in the valvetrain needs to be up to the task. The S&S Cycle Top End Kit addresses common weak points, providing superior strength and reliability for aggressive cam profiles and increased RPMs. This integrated package ensures that your cylinder heads can handle the extra power, giving you confidence on the street or the track.
Engineered for Extreme Demands
- Heat-treated 8640 steel head bolts with 200,000 psi tensile strength, 14% stronger than OEM
- Forged 8620 steel roller rocker arms designed via Finite Element Analysis (FEA)
- Replacement rocker arm shafts address worn or broken OEM pieces
- Rocker arm stud kit extends cylinder head life and allows secure fastening
The Foundation for a Powerful M8
This S&S Cycle Top End Kit is more than just a collection of parts; it's a carefully matched system designed to work in harmony. By upgrading these critical valvetrain components, you're building a more resilient and capable Milwaukee-Eight engine. It's an ideal foundation for any performance build, ensuring that your valvetrain can keep up with other power-adding modifications like cam swaps and big bore kits.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 900-1092
- Category: Engine Components / Heads
- Weight: 8.9 lb
Common questions
What specific components are included in this S&S Cycle Top End Kit?
This comprehensive kit includes a head bolt kit with stronger fasteners, forged 8620 steel roller rocker arms, replacement rocker arm shafts, and a rocker arm stud kit – everything needed for a robust top-end overhaul.
Will these components bolt onto my stock Milwaukee-Eight cylinder heads?
Yes, all components within this S&S Cycle Top End Kit are designed as direct replacements for OEM parts, making them compatible with your stock Milwaukee-Eight cylinder heads without requiring additional modifications.
Do I need to upgrade my cam or pushrods when installing this kit?
While this kit significantly strengthens your valvetrain, it's designed to work with both stock and performance camshafts. For optimal performance gains, especially in high-horsepower applications, considering a cam upgrade and compatible pushrods is often recommended.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | S&S Cycle |
| TYPE | Heads |
| SKU | T14-664767 |
| WEIGHT | 8.9 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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