fits model: Xk150. year: 2012.

( Manufacturer Part Number: 934-B-934B-C7917 ), ( Part Type: Rod Piston )
The C7917 Race Pistons, specifically designed for cars with a 3.8-liter engine, are a high-performance upgrade for your vehicle. Manufactured by Jahns, these pistons are meticulously crafted to deliver enhanced power, efficiency, and longevity.
The C7917 pistons are designed with a 12mm pin diameter, making them suitable for a wide range of classic and modern cars, including the XK150, XKE, and 934B 934 models. The pistons are made from high-quality forged alloy material, ensuring a strong and durable construction that can withstand the increased pressures and temperatures associated with high-performance driving.
The piston crowns are designed with a domed shape, which helps to increase the compression ratio and improve the engine's power output. The piston skirts are also optimized for a tight fit in the cylinder bore, reducing friction and promoting efficient combustion.
The C7917 Race Pistons also feature a full-floating wrist pin design, which allows the piston to move more freely within the cylinder, reducing the risk of detonation and promoting smoother engine operation. The pistons also feature oil control rings to ensure proper lubrication and prevent oil consumption.
In summary, the C7917 Race Pistons are a high-quality, high-performance upgrade for your 3.8-liter engine. They are made from durable forged alloy material, feature a domed piston crown for improved power output, and a full-floating wrist pin design for smooth operation. With proper installation and maintenance, these pistons can help you extract more performance from your engine and provide many years of reliable service.
Pros of buying C7917 Race Pistons:1. High-quality materials: These pistons are made from top-grade materials such as forged aluminum alloy, ensuring durability and strength.
2. Improved performance: The C7917 pistons are designed for high-performance applications, providing increased horsepower and torque.
3. Enhanced reliability: The pistons are engineered to withstand the high temperatures and pressures of racing, making them more reliable than stock pistons.
4. Customizable: The pistons are available in various sizes and configurations, allowing you to tailor them to your specific engine and performance needs.
Cons of buying C7917 Race Pistons:1. Expensive: Compared to stock pistons, race pistons like the C7917 can be quite pricey.
2. Requires specific engine knowledge: Installing these pistons requires a good understanding of engine mechanics, and it may require professional assistance.
3. May require additional upgrades: Installing high-performance pistons may necessitate other upgrades, such as new cylinder heads or camshafts, to fully realize their potential.
Conclusion:If you're looking for improved engine performance and reliability, the C7917 Race Pistons are a solid choice. Their high-quality materials and customizable options make them an attractive option for racers and enthusiasts alike. However, their high cost and the need for specific engine knowledge make them a less suitable option for those looking for a straightforward upgrade.
Recommendation:If you're an experienced racer or enthusiast with a good understanding of engine mechanics and are willing to invest in high-performance parts, the C7917 Race Pistons could be a great addition to your engine build. For those looking for a more cost-effective and straightforward upgrade, stock pistons may be a more suitable option.
I have never seen another set of these. These have been in storage since then. 8l C7917 connecting rods this is a super rare set of. From what I remember these are 12 1 compression and are using jaguar.
020 jahns pistons for jaguar the pistons are stamped 934B and measuring them they are please see pictures to see what your getting. They are actually out of a one of jaguar racing legend JFK Jackson's cars that he totaled in a race years ago. 8 XK150 xke e type. These were only in engine for a he one race and he crashed car on final lap in last corner.