KEITH BLACK PISTONS KB263-070 Piston Set

( Brand: Keith Black Pistons ), ( Manufacturer Part Number: KB263-070 ), ( Item Thickness: 0.1 In ), ( Machine Type: Street Motorcycle ), ( Items Included: Piston Rings ), ( Piston Diameter: 3.5 In ), ( Material: Aluminum Alloy ), ( Vintage Part: No ), ( Engine Type: 4-stroke ), ( Type: Piston Set ), ( Pin Diameter: 0.6 In ), ( Unit Quantity: Set With Rings ), ( Country Of Origin: United States ), ( Performance Part: Yes )

Review KEITH BLACK PISTONS Inch Piston Set Harley Davidson fits 1974

Introducing the Keith Pistons KB263-070 74 Piston Set, a high-performance solution for your Harley-Davidson engine. This piston set, manufactured by Keith Pistons, is meticulously crafted to deliver superior power, reliability, and longevity for your Harley-Davidson motorcycle.

The KB263-070 74 Piston Set consists of seven pistons, all designed to fit Harley-Davidson engines with a stroke length of 3.87 inches and a bore size of 3.97 inches. Each piston is made from forged 2618-T6 aluminum alloy, ensuring excellent strength, durability, and heat resistance. This material also ensures a lighter weight compared to cast pistons, contributing to increased engine performance.

The piston tops are CNC-machined to precise specifications, ensuring a perfect fit and optimal combustion efficiency. The piston skirts feature a unique design, with an optimized shape to minimize friction and wear against the engine's cylinder walls. Additionally, the pistons are treated with a thermal coating to reduce heat transfer and protect against detonation.

These pistons are also designed to work seamlessly with Harley-Davidson rings, ensuring proper sealing and preventing oil leaks. The piston set also includes new wrist pins and pin bosses, ensuring a secure fit and proper alignment.

The KB263-070 74 Piston Set from Keith Pistons is an excellent choice for Harley-Davidson enthusiasts who demand the highest levels of performance and reliability from their engines. Whether you're building a custom bike or looking to upgrade your existing engine, this piston set is sure to provide the power and durability you need to take your ride to the next level.

Installation of these pistons is a straightforward process, but it is recommended to have them installed by a professional mechanic or engine builder to ensure proper fitment and alignment. Properly installed, these pistons can help increase horsepower, torque, and overall engine performance, making your Harley-Davidson motorcycle a true powerhouse on the road.

The Keith Black KB263-070 piston set is a popular choice among Harley-Davidson enthusiasts for upgrading their engines. Here are some pros and cons to consider before making a purchase:

1. Enhanced Performance: These pistons are designed to provide better compression ratio and improved power delivery, resulting in increased horsepower and torque.

2. Durability: Made from forged aluminum, these pistons are known for their strength and longevity. They can withstand the high temperatures and pressures generated during engine operation.

3. Improved Ring Sealing: The piston rings on these pistons are designed to provide better sealing, reducing the amount of blowby and engine oil consumption.

4. Customizable: These pistons are available in various sizes and dome shapes to suit different engine configurations and riding styles.

1. Cost: These pistons are more expensive than OEM pistons. However, the performance and durability benefits may justify the investment for some riders.

2. Installation: Installing these pistons requires a fair amount of expertise and specialized tools. It is recommended to have them installed by a professional mechanic.

3. Weight: These pistons are heavier than OEM pistons, which may affect the overall weight and balance of the motorcycle.

The Keith Black KB263-070 piston set is a high-performance upgrade for Harley-Davidson engines. While they come with a higher price tag and require professional installation, the benefits in terms of increased power, improved durability, and better ring sealing may make them worth the investment for serious riders.

If you are looking to upgrade your Harley-Davidson engine for better performance and durability, the Keith Black KB263-070 piston set is a solid choice. However, it is important to consider the cost and installation requirements before making a purchase. Additionally, make sure to consult with a professional mechanic to ensure proper installation and engine tuning.

Details:

New old stock. 74 piston set with rings. 070 size bore. Brand new in box.

part #: kb263070 price

• $150.00

specifications pistondon:

• for makes: Harley, Davidson
• for years: 1974
• brand: Keith Black Pistons
• mpn: Kb263-070
• item thickness: 0.1 In
• machine type: Street Motorcycle
• items included: Piston Rings
• piston diameter: 3.5 In
• material: Aluminum Alloy
• vintage part: No
• engine type: 4-stroke
• type: Piston Set
• pin diameter: 0.6 In
• unit quantity: Set With Rings
• country of origin: United States
• performance part: Yes

payments pistondon:

• other
• wallet: Paypal
• credit card: Discover

offer pistondon:

• quantity: 1
• sold: 0
• options: Ship-to-home
• started: May 20, 2026
• availability: In Stock

shipping pistondon:

• cost: $15.00
• transit: 8-12 Days
• class: Standard
• type: Fixed
• carrier: USPS
• service: USPS Ground Advantage

general pistondon:

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

seller pistondon:

• rating: 100.0%
• city: Johnston City, Illinois
• # reviews: 205

returns pistondon:

• policy: No Returns

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