Cannonball CSO X-Spec McLaren Engine – Ultimate Performance & Reliability

Upgrade your McLaren with the Cannonball CSO X-Spec McLaren Engine, engineered for high-performance applications, track dominance, and extreme durability. Whether you’re looking for a McLaren engine rebuild, or a high-performance McLaren long block, this fully assembled powerhouse is designed to deliver maximum horsepower, precision, and reliability.

Precision-Built for Maximum Power

Engine Block – Strength & Cooling Optimization

✔ Fully cleaned and inspected for quality assurance
✔ Align-honed main journals to ensure precise bearing clearance
✔ CSO performance sleeves installed for increased durability
✔ 4.0L cooling passages drilled on 3.8L blocks for enhanced thermal efficiency

Crankshaft – Balanced for High RPM Stability

✔ Cleaned, magnafluxed to detect cracks, polished, and precision-balanced
✔ Built to withstand high-performance demands and extreme conditions

Cylinder Heads – Enhanced Airflow & Efficiency

✔ Disassembled, cleaned, and vacuum-tested for leak-free operation
✔ Deck surface machined for a perfect head gasket seal
✔ Full performance valve job for optimized airflow and combustion efficiency
✔ CSO high-performance valve springs installed for improved valvetrain stability
✔ Precision valve shim setup for peak performance

Forged Internals – Built for Boost & High Horsepower

✔ CSO forged pistons with performance-ring gap settings
✔ CSO forged connecting rods with pin fit for maximum strength
✔ CSO performance rod and main bearings for added durability under high loads
✔ CSO high-performance head gaskets for superior sealing

Premium Hardware & Assembly

✔ CSO main studs & head studs for increased clamping force and reliability
✔ OE front and rear main seals & water pump gaskets for leak-free operation
✔ Updated cam phaser bolts for enhanced camshaft stability
✔ Precisely set cam timing for optimal engine performance

Fully Assembled McLaren Engine – Ready to Install

Skip the hassle of engine assembly and get straight to performance. The Cannonball CSO X-Spec McLaren Engine is meticulously built, fully assembled, and ready to install—perfect for McLaren owners, performance shops, and race teams seeking an upgraded McLaren engine for the street or track.

Applications

• McLaren MP412c
• McLaren 540C
• McLaren 570S
• McLaren 570GT
• McLaren 600LT
• McLaren 620R
• McLaren 650S
• McLaren 675LT
• McLaren 720S
• McLaren 765LT
• McLaren GT
• McLaren P1
• Senna

Why Choose Cannonball Garage for Your McLaren Engine?

✔ Industry-leading expertise in McLaren performance engine builds
✔ Proven durability and reliability under high horsepower applications
✔ Precision machining and expert assembly for maximum performance
✔ Backed by years of experience in McLaren tuning and engineering

If you’re looking for a McLaren 3.8L built engine, a McLaren 4.0L stroker engine, or a McLaren long block upgrade, the Cannonball CSO X-Spec McLaren Engine is your ultimate solution.

🚀 Upgrade your McLaren today—contact us for pricing and availability!

Read our Terms & Conditions which includes our CSO Limited Engine Warranty HERE

View our “Engine Care Guide” HERE.