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VAC Motorsports Flanged Cylinder Sleeves, BMW S68

Mon, 9 Feb 2026 12:14:38 GMT

VAC Motorsports Flanged Cylinder Sleeves, BMW S68
Buy Now: $1,549.95

When pushing the BMW S68 platform beyond factory limits, the aluminum block becomes the weak link. The VAC Motorsports Flanged Cylinder Sleeves for BMW S68 are engineered to eliminate that limitation--delivering the strength, stability, and reliability required for high-boost, high-horsepower builds.

Manufactured from centrifugally cast ductile iron, these flanged sleeves are designed for extreme cylinder pressure, elevated temperatures, and sustained high-load operation. The flanged design provides superior deck support, dramatically reducing the risk of cylinder movement, distortion, or cracking under aggressive performance conditions.

Whether you're planning a high-boost turbo build, increasing displacement, or future-proofing an S68 for long-term durability, VAC flanged sleeves provide the foundation needed for reliable power.

Key Features & Benefits

Flanged Design for Maximum Strength
Integrated top flange reinforces the deck surface, improving cylinder stability and head gasket sealing under extreme boost and combustion pressure.
Centrifugally Cast Ductile Iron Construction
Significantly stronger than factory Alusil cylinder walls, offering superior resistance to cracking and distortion in high-power applications.
Supports Increased Bore Size
Enables larger bore diameters for increased displacement, airflow, torque, and horsepower potential.
Custom Cylinder Wall Thickness
Optimized wall thickness allows builders to tailor strength for high-boost and forced-induction builds.
Improved Thermal Stability
Enhanced heat transfer and resistance to hot spots help maintain consistent operating temperatures in demanding performance environments.
Built for Extreme Performance Builds
Ideal for turbocharged, high-compression, and competition-level engine builds where reliability is non-negotiable.

Important: Cylinder sleeve installation is a precision machining process and must be performed by an experienced engine machine shop familiar with BMW performance engines.

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VAC Motorsports Flanged Cylinder Sleeve, BMW S68

Fri, 27 Jun 2025 11:42:46 GMT

VAC Motorsports Flanged Cylinder Sleeve, BMW S68
Buy Now: $1,589.00

VAC Motorsports' Flanged Cylinder Sleeves are the ultimate foundation for your high-performance BMW S68 build. Crafted from centrifugally cast ductile iron, these sleeves are precision-machined in-house and designed to handle the extreme demands of today's boosted and high-horsepower applications.

Whether you're chasing displacement, higher boost levels, or increased engine longevity, our flanged sleeves deliver unmatched durability, superior heat dissipation, and the strength to support serious power.

🔧 Key Benefits of VAC Engine Sleeving:

✅ Increased Bore Size
Gain displacement and power by safely increasing bore size, giving your build more room to breathe and deliver torque.

✅ Extreme Strength Under Stress
Ductile iron is significantly stronger than factory alusil under high cylinder pressures--ideal for turbocharged, supercharged, or high-compression applications.

✅ Custom Cylinder Wall Thickness
Thicker cylinder walls support aggressive builds and allow tuning flexibility, especially in high-boost environments.

✅ Superior Heat Dissipation
Efficiently manages the extreme temperatures of performance driving, helping prevent hot spots and detonation.

✅ Enhanced Engine Longevity
Protect your investment--our sleeves reduce the risk of cracking and catastrophic engine failures common in high-stress builds.

✅ Designed for High-Performance Modifications
Built to work seamlessly with forged pistons, advanced camshaft profiles, and forced induction systems.

📌 Installation Note:

Engine sleeving is not a DIY job. This is a complex, high-precision process that should be performed by experienced machine shops familiar with BMW engine blocks. VAC Motorsports offers full in-house sleeving services backed by decades of engine-building expertise. Contact our team for build consultations and component guidance.

📍 BMW S68 Applications:

2024+ G90 M5
2024+ G99 M5 Touring
2022+ G70 760i xDrive
2022+ G09 XM
2023+ G05 X5 M60i
2023+ G06 X6 M60i
2024+ F96 X6 M Competition
2023+ G07 X7 M60i

📞 Ready to Build?
Let our engine build experts guide your S68 performance journey.
Email: sales@vacmotorsports.com
Phone: (215) 462-4666
Website: www.vacmotorsports.com

🔩 VAC Motorsports - Engineered to Win. Built to Last.
Proudly made in the USA.

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VAC Motorsports Flanged Cylinder Sleeves, BMW S55

Tue, 22 Oct 2024 12:37:45 GMT

VAC Motorsports Flanged Cylinder Sleeves, BMW S55
Buy Now: $1,199.95

Big Boost Engines!

Our centrifugal-spun iron alloy sleeves transfer heat quickly and efficiently, offer excellent wear and longevity properties, and allow pistons/rings from nearly any manufacture to break in properly- ensuring longer and more dependable engine life.

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