JE PISTONS 399158 Piston Kit 193564567628 4.260 4.500 11.5 108

( Brand: Je Pistons ), ( Manufacturer Part Number: 399158 ), ( Part Type: Piston ), ( Country Of Origin: United States ), ( UPC: 193564567628 )

Review JE PISTONS Piston Kit 4.260 Inch Bore 4.500 Stroke 11.5 108 fits M8 500 CR

The JE Pistons 399158 piston kit is a high-performance solution for engines with a bore size ranging from 4.260 inches to 4.500 inches and a compression height of 11.5 inches. This kit is designed for applications requiring a compression ratio of 10:8:1.

Each piston in this kit is meticulously crafted using JE's proprietary forged 2618-T6 aluminum alloy. This material provides exceptional strength and durability, ensuring the pistons can withstand the rigors of high-performance applications. The pistons also feature a precision-machined crown, which ensures optimal combustion efficiency and power output.

The piston skirts are designed with a full-floating, pin-bore design. This innovative design allows the piston to float within the cylinder bore, reducing friction and promoting smooth engine operation. The piston pins are made from high-strength, chrome-molybdenum steel, ensuring maximum durability and strength.

The piston rings included in this kit are made from top-quality materials, including a nitrided, chrome-molybdenum steel ring set for the compression rings and a phosphorous-copper ring set for the oil control rings. These rings are designed to provide a perfect seal between the piston and the cylinder wall, ensuring optimal engine performance and efficiency.

The piston kit also includes JE's patented piston cooling jets. These jets are strategically located on the piston crown to provide cooling air directly to the hottest areas of the piston, reducing the risk of detonation and ensuring optimal engine performance.

The JE Pistons 399158 piston kit is a high-performance solution for engines requiring a bore size between 4.260 inches and 4.500 inches and a compression height of 11.5 inches. This kit is designed for applications requiring a compression ratio of 10:8:1 and is backed by JE's industry-leading warranty, ensuring customer satisfaction and peace of mind.

Pros and Cons of Buying Je Pistons 399158 Piston Kit for Ford 4.2L & 4.6L Engines

The Je Pistons 399158 piston kit is designed for Ford 4.2L and 4.6L engines with a connecting rod length of 4.260 inches to 4.500 inches, a compression ratio of 11.5:1, and a piston diameter of 108mm. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this piston kit.

1. High-Quality Material: The pistons are made from forged aluminum, which is durable and can withstand high compression and engine temperatures.

2. Enhanced Performance: The pistons are designed to provide better combustion efficiency, leading to improved engine performance and power output.

3. Precision Manufacturing: The pistons are manufactured using advanced CNC machining techniques, ensuring a high degree of accuracy and consistency.

4. Wide Compatibility: The piston kit is compatible with a wide range of Ford engines, making it a versatile option for various applications.

1. Cost: The Je Pistons 399158 piston kit is more expensive than some other aftermarket options, which may deter some buyers.

2. Installation Complexity: Installing the pistons and related components requires a certain level of mechanical expertise and experience.

3. Potential Clearance Issues: Depending on the specific engine and modifications, there may be clearance issues with some components, which could necessitate additional modifications or adjustments.

The Je Pistons 399158 piston kit offers several advantages, including high-quality materials, enhanced performance, precision manufacturing, and wide compatibility. However, it also comes with some disadvantages, such as cost, installation complexity, and potential clearance issues. Ultimately, the decision to purchase this piston kit depends on your specific needs, budget, and mechanical expertise.

If you are looking for excellent piston quality and performance improvements, and have the necessary resources to install the kit and address any potential clearance issues, then the Je Pistons 399158 piston kit may be a worthy investment. However, if you are on a tight budget or lack the necessary mechanical expertise, you may want to consider alternative options or consult with a professional mechanic before making a decision.

Details:

Addicted Guarantee. His grandfather had been a national racing champion and resides in the AMA motorcycle hall of fame. Skirt coating reduces operating friction and wear. Born From Racing.

Je Pistons Piston Kit 4.260 Bore 4.500 Stroke 11.5:1 CR 108 M8 - 399158. Never ship an item back in the manufacturers packaging, always use over-box. Chad?love for motorcycles and technology sparked a passion project that soon became his life's work. Offset pins reduce piston rock and minimize operating noise.

Skirt notches for optimal clearance at bottom dead center. Accumulator groove taps combustion gases below the top ring to promote more consistent, positive seal and performance. Until recently it was difficult to reach out our fellow riders, but now with Iva and a $25 loan you can easily help rider in need. Includes two Pistons, premium ring packs, wrist pins and wire locks.

part #: 399158 prices

• $376.30-$474.99

specifications pistondon:

• for models: M8, 500, Cr
• brand: Je Pistons
• mpn: 399158
• part type: Piston
• country of origin: United States
• upc: 193564567628

general pistondon:

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

shipping pistondon:

• transit: 3-8 Days
• cost: $0.00
• class: Standard
• type: Fixed
• service: Standard

offer pistondon:

• sold: 0
• availability: In Stock
• quantity: 7
• started: April 20, 2026
• options: Ship-to-home

payments pistondon:

• wallet: Paypal
• credit card: Diners-club
• other

returns pistondon:

• time: 60 Days
• paid by: Seller
• policy: Returns Accepted

seller pistondon:

• # reviews: 66151
• rating: 99.4%
• city: Mission Hills, California

Je Pistons 399158 Is Similar To:

• J.e Pistons Mn a2pe Je Piston Kit For 2006-2018 Kawasaki Kx450f Engine Nt (43.4% similar) Je Pistons piston kit for 2006 -2018 Kawasaki KX450F - engine nt: status: in stock...(August 15th, 2024)
• J.e Pistons 180297 Je (32.7% similar) Fast free, shipping: brand Je Pistons, part number 180297, upc code, condition new. The color, quantity, size, etc. The compatibility section is not always 100% accurate. May not be accurate. This item comes...(August 16th, 2024)
• Je 102m Piston Harley 4.125 120 Inch 4 3 16 102m Big 2 Cam Motors (44.4% similar) Big 2 cam motors. With pins, rings,clips. Piston # 102M. 120 Je Pistons 4.125 4/3 /16...(August 23rd, 2024)
• J.e Pistons 323558 Je (32.7% similar) May not be accurate. The compatibility section is not always 100% accurate. Fast free, shipping: brand Je Pistons, part number 323558, upc code 2, condition new. This item comes with the full manufacturers warranty. The color, quantity, size, etc. Fitment: please see the compatibility...(August 28th, 2024)
• Wiseco Je Cp Cometic Bpratv Honda Crf250r Crf 250r 250x 10001 04-09 Stock Bore Piston Cylinder Top End Rebuild (16.1% similar) The best performance. Warranty: this product is not DI. Kibble white hi-temp red Vito valve stem seals - insist on the ones. Operative - the best parts. No other parts nor any labor are included. The best price. Once a part has been installed or prepped for installation it is no longer...(August 29th, 2024)
• J.e Pistons 247937 Je Piston 77mm 13.5 1 247937 Fits Yamaha gas Gas Yz250f 4-stroke wr250f ec 250f (35.2% similar) Je piston 77MM 13.5:1 #247937 fits Yamaha/gas gas YZ250F 4-STROKE/WR250F/EC 250F: machined from 2618 t6 high tensile forged aluminum. Dome/dish features smooth flowing radius and requires no debarring or preparation. Pins, pin fitment, lock and rings included. Made in the USA...(September 1st, 2024)
• J.e Pistons 131243 Je 1986-2004 Honda Xr250 77mm 10.5.1 277cc 77.00mm 10.5 1 (30.1% similar) Pins, pin fitment, lock and rings included. Machined from 2618-T6 high-tensile forged aluminum. Made in the USA. Dome/dish features smooth flowing radii; require no debarring or preparation. Je Pistons, piston, type: piston kit, bore: 77.00MM, compression ratio: 10.5:1, sold as: kit...(September 9th, 2024)
• J.e Pistons Jc3301-3031 Je Ring Set For Engine Piston Rings Ya (34.5% similar) Je Pistons JC3301-3031 ring set for engine piston rings ya: status: in stock...(September 13th, 2024)
• J.e Pistons 192315 Je (32.7% similar) This item comes with the full manufacturers warranty. The compatibility section is not always 100% accurate. May not be accurate. Fast free, shipping: brand Je Pistons, part number 192315, upc code 5...(September 16th, 2024)
• J.e Pistons 370244 Je Piston Kit Harley Milwaukee 8 M8 4.08 X 4.375 (48.6% similar) Condition: new. Manufacturer part number: 370244. Manufacturer: Je Pistons. Forged from 2618-T6 aluminum for better aligned grain flow and higher tensile strength. Product name: piston kit. Msrp: $449.99. High 11.0:1 compression ratio for improved performance. Manufacturer warranty: see...(September 17th, 2024)
• J.e Pistons Zv9600 Je (34.7% similar) This item comes with the full manufacturers warranty. Fast free, shipping: brand Je Pistons, part number ZV96 upc code, condition new. The compatibility section is not always 100% accurate. The color, quantity, size, etc. May not be accurate. Fitment: please see the compatibility...(September 18th, 2024)