1. Pistons, Rings & Piston Kits Products
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  3. KB PERFORMANCE 650949

KB PERFORMANCE 650949 Domed Piston Kit Compression 8.6

fits model: Shovelhead. make: Harley. year: 1978-84–1980.

650949 Kb Performance Domed Piston Kit Harley 80 Shovelhead 8.6 1 Compression 1978-84

( Brand: Kb Performance ), ( Manufacturer Part Number: 650949 ), ( Engine Type: 4-stroke ), ( Type: Piston Kit ), ( Items Included: Piston Rings, Wrist Pin ), ( Placement On Vehicle: Front, Rear ), ( Performance Part: Yes )

Review KB PERFORMANCE Domed Piston Kit Harley 8.6 Compression fits SHOVELHEAD 1978-84–1980

KB Performance 650949 Domed Piston Upgrade Kit for Harley-Davidson Shovelhead Engines (1978-1984)

Introduction:

The KB Performance 650949 Domed Piston Upgrade Kit is a high-performance upgrade designed specifically for Harley-Davidson Shovelhead engines manufactured between 1978 and 1984. This kit includes a set of domed pistons and associated hardware, which deliver improved engine performance, increased horsepower, and better combustion efficiency.

Design and Features:

Each piston in this kit comes with a unique, fine-tuned dome shape, designed to enhance combustion pressure and improve volumetric efficiency. The piston domes are carefully engineered to provide optimal clearance with the cylinder head and to work in harmony with the Harley-Davidson's factory rings. The result is an engine with increased power and torque throughout the RPM range.

About the Material:

These pistons are crafted from forged 2618 alloy aluminum, a material distinguished for its exceptional strength, durability, and temperature resistance. This makes the pistons less prone to failure, ensuring a longer service life and thus reducing the need for frequent piston replacements.

Compatibility and Installation:

The KB Performance 650949 Domed Piston Upgrade Kit is compatible with all stock and performance-oriented Shovelhead engines from model years 1978 through 1984. The kit includes everything necessary for a successful installation: pistons, rings, piston pins, rods, and clips. Installing the kit involves merely swapping out the stock pistons with these upgraded components, making it an ideal upgrade for both recreational riders and performance enthusiasts.

Benefits and Performance Expectations:

By upgrading to the KB Performance 650949 Domed Piston Upgrade Kit, riders can expect numerous improvements to their Shovelhead engine. Some of these benefits include increased horsepower and torque, improved throttle response, and smoother running engines with better combustion efficiency. Enthusiasts reporting up to 15 horsepower gains and considerable torque improvements by upgrading their Shovelhead engines with these pistons.

Additionally, these upgraded pistons allow for higher performance engine configurations such as increased compression ratios and improved bore sizes, ultimately resulting in better overall performance and a more enjoyable riding experience.

Conclusion:

The KB Performance 650949 Domed Piston Upgrade Kit is an excellent investment for any Harley-Davidson Shovelhead engine owner. With improved power, torque, and durability, this kit is a must-have for those seeking increased performance in their vintage machines. For riders looking to get the most from their Shovelhead engines or to take their custom builds to the next level, this kit is a valuable and rewarding upgrade.

Buying a KB Performance 650949 domed piston kit for Harley-Davidson 80 Shovelhead engines produced between 1978 and 1984 comes with its advantages and disadvantages. Here's a brief analysis of each.

Advantages:

1. Enhanced Performance: The primary advantage of these domed pistons is improved engine performance. The domed design increases compression ratio, resulting in more power and torque from each stroke. This can lead to a smoother, stronger running engine.

2. Durability: The KB Performance pistons are forged from high-quality materials, ensuring long-lasting performance. This makes them a desirable alternative to stock pistons, which may not endure the rigors of high-performance riding.

3. Customization: Installing the KB Performance domed pistons kit allows you to customize your engine's compression ratio to better suit your personal riding style and preferences.

4. American-Made: These pistons are proudly manufactured in the USA, combining the iconic Harley-Davidson heritage with the quality of American craftsmanship.

Disadvantages:

1. Cost: Domed pistons like the KB Performance 650949 kit can be pricey compared to stock pistons. The price difference may deter some riders, especially those on a tight budget.

2. Fitting and Installation: Installing domed pistons requires special tools and knowledge. Professional installation is recommended for best results to avoid engine damage.

3. Slight Increase in Engine Noise: Some riders may notice a slight increase in engine noise after installation. This is typically due to the design and material differences between the new pistons and the original ones.

4. Potential for Engine Tuning: The higher compression ratio provided by the new pistons may require changes to fueling and ignition systems to maintain optimal engine operation. This can add another layer of complexity and costs.

Conclusion:

The decision to buy a KB Performance 650949 domed piston kit for your Harley-Davidson 80 Shovelhead engine ultimately depends on your preferences and riding needs. If you value enhanced performance, durability, and are willing to invest the time and money to install them and potentially fine-tune your engine, then these pistons could be a worthwhile investment. However, if price, ease of installation, or a quieter engine are more important to you, then you may wish to consider sticking with stock pistons or alternative options.

Details:

Sold in Pairs. Pins, Locks and assembly lube. This low expansion alloy allows for a tighter piston wall clearance. KB Performance Pistons,: High Quality Performance pistons Cast from 390 Hyper eutectic Alloy.

220 Dome w/ -47.44 cc. Photos are for reference only. 2 Cast piston sets, sets of ductile iron Molly coated rings. 3.4980 Bore with 4.250 Stroke.

Actual product may differ from the item shown.

part #: 650949 price

  • $202.77

specifications pistondon:

  • for models: Shovelhead
  • for makes: Harley
  • for years: 1978-84-1980
  • brand: Kb Performance
  • mpn: 650949
  • engine type: 4-stroke
  • type: Piston Kit
  • items included: Piston Rings, Wrist Pin
  • placement on vehicle: Front, Rear
  • performance part: Yes

general pistondon:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
  • condition: New

shipping pistondon:

  • service: Standard
  • transit: 6-11 Days
  • type: Fixed
  • class: Standard
  • cost: $19.91

seller pistondon:

  • city: Harleysville, Pennsylvania
  • rating: 100.0%
  • # reviews: 11623

returns pistondon:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days

offer pistondon:

  • quantity: 1
  • availability: In Stock
  • started: November 8, 2024
  • sold: 0
  • options: Ship-to-home

payments pistondon:

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  • credit card: Visa
for models: shovelhead, for makes: harley, for years: 1978-84-1980, engine type: 4-stroke, type: piston kit, items included: piston rings, wrist pin, placement on vehicle: front, rear, performance part: yes,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 2319889232205651,

Kb Performance 650949 Is Similar To:

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1 offer $202.77 USD
  • Offer #1: $202.77 price + $25.00 shipping estimate = $227.77* total. 2 Cast piston sets KB Performance Pistons.+$25.00 shipping

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