SCG S-Tier
The Benchmark. Engineered Without Compromise.
The SCG S-Tier is the benchmark for independent McLaren performance and engine development. Developed, engineered, and assembled entirely in-house by the SCG team, the S-Tier represents the highest level of our engine program — built for owners who demand uncompromising performance, race-level durability, and precision engineering in a single package.
Engineered Excellence
Fully Engineered In-House
Every component is selected, machined, and assembled by the SCG team. This is not a modified factory engine — it's an SCG-built performance platform.
Race-Level Durability
Engineered to withstand serious, sustained power output and the rigors of aggressive driving without failure.
Maximum Performance
Precision assembly and component selection optimized for one objective: maximum performance without sacrificing reliability.
Confidence To Push Harder
Built to deliver the confidence to push your McLaren harder, more often, with complete peace of mind.
- Complete teardown, inspection & measurement
- In-house machining, honing & surfacing
- SCG engineered component package
- Reinforced rotating assembly
- Precision porting & flow optimization
- Performance bearing & clearancing spec
- Hand assembly with full documentation
- Dyno break-in, tuning & power validation
The Build Process
Every SCG S-Tier engine follows a meticulous, documented process.
Teardown & Inspection
Full disassembly, crack testing, and measurement of every component to factory specs.
Machining & Prep
Block honing, head surfacing, porting, and balancing — all done in-house.
Assembly & Clearancing
Hand-assembled by master builders. Every clearance measured and documented.
Dyno & Validation
Break-in cycle, dyno tuning, and final power validation before delivery.