WISECO MN-FN8H Piston Kit Fxstsb Engine Em MN/FN8H

( Brand: Wiseco ), ( Manufacturer Part Number: MN/FN8H ), ( Type: K Piston Kits ), ( Compatible Year: 1997 1996 1995 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fxstsb Bad Boy ), ( Bundle Description: 1 Pc Genuine Wiseco K Piston Kits ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review WISECO Mn/fn8h Piston Kit For Harley Davidson Fxstsb Bad Engine Em fits BOY 1995–1997

Introducing the WiseCo MN/FN8H Piston Kit, specifically designed for Harley-Davidson FXSTSB (Softail Breakout) models produced between 1995 and 1997. This piston kit is an excellent choice for riders seeking top-tier performance and durability for their engine.

The WiseCo MN/FN8H Piston Kit includes four pistons, each meticulously crafted from forged aluminum alloy. This material offers superior strength and rigidity compared to cast pistons, allowing the engine to handle increased power and torque. Each piston features a compressive ring groove design that ensures optimal ring sealing, resulting in reduced blow-by and improved combustion efficiency.

The piston skirt's unique design ensures a perfect fit in the cylinder bore, minimizing the potential for piston-to-bore contact and reducing friction. Additionally, the piston skirts are treated with a proprietary coating for enhanced durability and resistance to scuffing and wear.

Each piston comes pre-gapped with WiseCo's high-performance rings, ensuring a proper ring gap right out of the box. The rings are made from a nitrided, chrome-molybdenum alloy, providing excellent strength and wear resistance. The compression rings are designed with a split-ring profile, ensuring proper sealing and even ring wear. The oil control rings feature a tapered design, allowing them to maintain a consistent oil film on the piston skirt for optimal engine lubrication.

The pistons are also designed to work seamlessly with the factory Harley-Davidson connecting rods and crankshaft. This ensures a drop-in installation, making the piston swap process quick and straightforward.

The WiseCo MN/FN8H Piston Kit is an ideal solution for riders looking to enhance the performance and longevity of their Harley-Davidson FXSTSB engine. With its forged aluminum pistons, superior ring design, and drop-in installation, this piston kit is sure to provide a noticeable improvement in power and torque, while maintaining the smooth and reliable operation that Harley-Davidson engines are known for.

Wiseco MN/FN8H Piston Kit for 1995-1997 Harley-Davidson FXSTSB (Boyne Engine): A Comprehensive Analysis

* The Wiseco MN/FN8H piston kit is designed to increase power and torque by providing better compression ratios and stronger piston material.

* Enhanced combustion efficiency leads to better fuel economy and smoother engine operation.

* The pistons are made of forged aluminum, which is stronger and more durable than stock pistons.

* The kit includes ring sets and wrist pins designed for high performance and long life.

* Wiseco offers various piston sizes and designs to suit different riding styles and engine modifications.

* The kit can be used as a starting point for more extensive engine upgrades.

* Installation requires significant engine disassembly and reassembly, which can be time-consuming and labor-intensive.

* Increased compression ratio may require the use of premium fuel to achieve optimal performance.

* Compatibility with stock heads may be limited, potentially requiring additional modifications or upgrades.

* The Wiseco MN/FN8H piston kit is a premium upgrade and may be more expensive than stock or aftermarket alternatives.

* The cost of the kit should be weighed against the potential performance gains and long-term savings from increased durability and efficiency.

The Wiseco MN/FN8H piston kit for the 1995-1997 Harley-Davidson FXSTSB engine offers significant performance improvements and increased durability compared to stock pistons. However, the installation process can be complex and time-consuming, and the kit may require additional modifications to achieve optimal performance. Ultimately, the decision to purchase this kit depends on the rider's goals, budget, and willingness to invest time and resources into their engine upgrade.

If you're looking for a significant performance boost and increased durability for your Harley-Davidson FXSTSB engine, the Wiseco MN/FN8H piston kit is a worthwhile investment. However, be prepared for a complex installation process and potential compatibility issues with stock heads. Prospective buyers should carefully consider their budget, riding style, and long-term goals before making a purchase.

Details:

Domed - .030in. Wiseco K Piston Kit for 1995 - 1997 Harley Davidson FXSTSB Bad Boy - Engine em: Status: In Stock. Oversize to 3.528in. K Piston Kit 80ci.

part #: mnfn8h prices

• $244.89-$393.37

specifications pistondon:

• for models: Boy
• for makes: Harley, Davidson
• for years: 1995-1997
• brand: Wiseco
• mpn: Mn/fn8h
• type: K Piston Kits
• compatible year: 1997 1996 1995
• compatible make: Harley Davidson
• compatible model: Fxstsb Bad Boy
• bundle description: 1 Pc Genuine Wiseco K Piston Kits
• core charge: Free No Core Charge
• fitment type: Direct Replacement

seller pistondon:

• city: Multiple warehouses
• # reviews: 16738
• rating: 98.7%

shipping pistondon:

• transit: 3-6 Days
• class: Standard
• service: Standard
• type: Fixed
• cost: $0.00

payments pistondon:

• other
• wallet: Apple-pay
• credit card: Diners-club

general pistondon:

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

offer pistondon:

• started: January 28, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

returns pistondon:

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

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