WISECO K1749 Piston Kit Big Com 93.4CI. .242 3.740 9.5

( Brand: Wiseco ), ( Manufacturer Part Number: K1749 ), ( Part Type: Piston Com ), ( Make: Harley )

Review WISECO Piston Kit 93.4ci. Big Bore .242 Inch Oversize To 3.740 9.5 Com fits 740

The WiseCo K1749 piston kit is specifically designed for big block Chevrolet engines with a displacement of 93.4 cubic inches, suitable for applications such as the 1968-1972 242 3.740 9.5 cubic inch engines. This piston kit is an excellent choice for those seeking high-performance upgrades or engine rebuilds.

Each piston in this kit is meticulously crafted from forged aluminum alloy. This material offers superior strength and durability compared to cast pistons, making it an ideal choice for high-performance applications. The forged pistons also reduce the likelihood of piston-related engine failures, ensuring a longer-lasting and more reliable engine.

The piston tops are designed with a dished shape to optimize combustion efficiency and power output. The piston skirts are ribbed to promote better oil control and cooling, minimizing the risk of piston-related issues. The piston rings are made from chrome aluminum alloy, ensuring a tight seal between the piston and cylinder wall for optimal engine performance and efficiency.

The piston kit is also designed with a 0.030-inch overbore, allowing for increased engine displacement and power output. This overbore is commonly used in high-performance applications, making this piston kit an excellent choice for those seeking increased power and torque from their big block Chevrolet engine.

The WiseCo K1749 piston kit also includes matching wrist pins and piston pin bushings to ensure a perfect fit and smooth operation. The wrist pins are designed with a full-floating design, which reduces friction and wear, while the piston pin bushings provide a secure and reliable connection between the piston and connecting rod.

In conclusion, the WiseCo K1749 piston kit is an excellent choice for those seeking high-performance upgrades or engine rebuilds for their big block Chevrolet engines. This kit is meticulously designed with forged aluminum alloy pistons, optimized piston tops, and robust piston rings, ensuring superior strength, durability, and power output. The kit also includes matching wrist pins and piston pin bushings for a perfect fit and smooth operation.

The WiseCO K1749 piston kit is designed for 93.4ci (1522cc) big block Chevrolet engines with a displacement of 242 cubic inches, a stroke of 3.740 inches, and a compression height of 9.5 inches. Here are some pros and cons that may help you make an informed decision about purchasing this piston kit.

1. High-quality materials: The pistons are made from forged 2618-T6 aluminum alloy, which offers excellent strength and durability.

2. Precision machining: The pistons undergo precise machining to ensure a perfect fit and optimal performance.

3. Enhanced power: The piston design is optimized for high compression and increased power output.

4. Improved ring life: The piston rings are made from high-quality, chrome molybdenum alloy, which provides extended ring life and improved sealing.

1. Expensive: The WiseCO K1749 piston kit is pricier compared to other aftermarket piston kits, making it a significant investment.

2. Requires professional installation: Installing the pistons requires specialized knowledge and tools, so it's recommended to have them installed by a professional mechanic.

3. May not be suitable for stock engines: The pistons are designed for high-performance applications, so they may not be suitable for stock engines or engines with low compression ratios.

In conclusion, the WiseCO K1749 piston kit offers several advantages, such as high-quality materials, precision machining, enhanced power, and improved ring life. However, it also comes with some drawbacks, including its expensive price tag, the need for professional installation, and the potential suitability issue for stock engines.

If you're looking to build a high-performance big block Chevrolet engine or upgrade an existing one, the WiseCO K1749 piston kit could be a worthwhile investment. However, it's essential to weigh the pros and cons, consider your budget and engine requirements, and ensure that you have access to professional installation services.

Recommendation: If you're in the market for high-performance pistons for your big block Chevrolet engine, the WiseCO K1749 piston kit is a solid choice. However, make sure you have the necessary resources to install them professionally and budget accordingly. If the cost is a concern, consider exploring other aftermarket piston kit options to find a more affordable alternative that still meets your performance goals.

Details:

Compression: 9.5:1 Compression, Sizing: 0.242in. Wiseco, K Piston Kit 93.4ci. Oversize to 3.740in. Kit include: Forged pistons, rings, cir clips, chrome piston pins.

Sold as: Each. Big Bore, Flat Top .242in. Any damage claims may be exchanged for the identical item only.

part #: k1749 prices

• $398.98-$400.99

specifications pistondon:

• for models: 740
• brand: Wiseco
• mpn: K1749
• part type: Piston Com
• make: Harley

payments pistondon:

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

seller pistondon:

• # reviews: 642911
• city: Loudon, Tennessee
• rating: 99.6%

general pistondon:

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

returns pistondon:

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

offer pistondon:

• sold: 0
• quantity: 3
• availability: In Stock
• options: Ship-to-home
• started: April 28, 2026

shipping pistondon:

• service: Economy, Standard, Expedited
• transit: 4-10 Days
• class: Economy, Standard, Expedited
• type: Fixed
• cost: $0.00

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