McLaren Engine : Cannonball CSO R-Spec

CSO R-Spec McLaren Engine – Built to Elevate Performance

Elevate your McLaren’s performance with the CSO R-Spec McLaren Engine from Cannonball Garage, the nation’s leading independent McLaren specialist. Developed and assembled in-house by the experts at Cannonball Special Operations (CSO), this engine build is the definitive answer for owners demanding race-proven durability and precision-engineered power.

What’s Included in the CSO R-Spec McLaren Engine Build

Every CSO R-Spec Engine is hand-built using a rigorous multi-step process that combines motorsport-grade components with meticulous craftsmanship. The result: a fully dressed, sealed, and install-ready McLaren long block built to outperform and outlast.

Comprehensive Teardown & Engine Analysis

• Full engine breakdown, analysis, and salvageability report

• Component undress and redress for a complete mechanical refresh

• Crankshaft inspection, cleaning, and polish for reduced friction and long-term durability

Block & Rotating Assembly Machining

• Align honing to ensure precise crankshaft and bearing alignment

• Hot tank and steam clean of engine block

• Cylinder honing for optimal piston ring seating

• Connecting rods match-weighted and pin-fit for balanced performance

• Forged pistons, performance wrist pins, and performance rings

• High-strength CSO rods designed for extreme loads

Premium Hardware & Internal Components

• CSO-spec head studs and main studs for improved clamping force

• CSO-spec multi-layer head gaskets engineered for high-boost applications

• King Racing rod bearings and CSO main bearings for superior strength

• New front main seal, rear main seal, and front engine cover seal

• Updated cam phaser bolts for long-term timing security

Head Service & Final Assembly

• Heads thoroughly cleaned, inspected, and rebuilt as needed

• Assembly performed by specialists using precision torque sequencing and clearances

• Engine is fully sealed, dressed, and delivered ready for installation

Why Choose the CSO R-Spec Engine from Cannonball Garage?

At Cannonball Garage, we don’t just build McLaren engines—we solve the problems the OEM left behind. Our CSO R-Spec Engine is engineered with race-inspired hardware, forged internals, and a focus on both longevity and performance. Whether you’re building a high-horsepower street machine or prepping for serious track use, the R-Spec delivers confidence at any RPM.

With countless hours of McLaren-specific experience, data-backed results, and proven success under extreme conditions, Cannonball Garage is the trusted source for McLaren performance engine builds across the country.

Installation & Support

We offer complete in-house installation at our facility, or we can ship your CSO R-Spec Engine ready for installation by your trusted technician. Each build is documented, tested, and supported by our expert team.

Contact Us to Build Your CSO R-Spec McLaren Engine Today

Ready to transform your McLaren with track-grade reliability and power? Contact Cannonball Garage to begin your CSO R-Spec Engine build. Our team will walk you through the process, answer your questions, and help tailor a solution that fits your goals.

Applications

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

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

View our “Engine Care Guide” HERE.