Excellence in Detail

At SOIR Motors, we don’t just rebuild engines — we craft precision, performance, and reliability into every air-cooled Porsche engine we touch. Our old-school approach and relentless attention to detail deliver results that speak for themselves.

Discover the Art of Engine Restoration

At SOIR Motors, we honor Porsche heritage through meticulous restoration of vintage flat-six engines, blending passion with precision to deliver unmatched craftsmanship and reliability.

Discover Our Latest Engine Builds

Showcasing our meticulous restoration of vintage Porsche flat-six engines, highlighting craftsmanship and precision in every build.

Restoration Highlight One

1965 Porsche 911 Engine

A fully rebuilt air-cooled flat-six engine, restored to factory specs with attention to original detail.

Restoration Highlight Two

1972 Porsche 911S Flat-Six

Engine meticulously rebuilt using authentic parts to preserve the classic Porsche performance and sound.

Restoration Highlight Three

1980 Porsche SC Engine

Complete engine restoration focusing on durability and original craftsmanship for long-lasting performance.

Our Process

Discover how we meticulously restore each vintage Porsche flat-six engine, ensuring quality and authenticity at every stage.

Step One: Assessment

We begin with a thorough evaluation of your engine’s condition, identifying wear and planning restoration strategies.

Step Two: Restoration

Our expert craftsmen rebuild your engine using precision techniques and genuine parts, honoring Porsche heritage.

Step Three: Quality Assurance

Each engine undergoes detailed testing and documentation to guarantee performance and reliability.

Owner Testimonials

Discover heartfelt feedback from Porsche enthusiasts who trust our vintage engine restorations and craftsmanship.

The restoration exceeded my expectations—precision work that truly honors Porsche’s heritage.

Michael S.

Vintage Car Collector

Working with SOIR Motors was a delight; their passion and attention to detail shine through every step.

Laura T.

Classic Porsche Enthusiast

Expert craftsmanship paired with clear communication made this a seamless and rewarding experience.

David R.

Automotive Historian

From start to finish, the service was impeccable—my engine runs like new with full confidence.

Anna K.

Restoration Specialist

Trusted Warranty Backing Every Rebuild

Experience confidence in every mile with our 12-month / 12,000-mile limited warranty—covering workmanship and labor on all SOIR Motors engine rebuilds. Each project is fully documented and supported with prompt, transparent service should concerns arise. Our warranty reflects the precision, integrity, and accountability we bring to every air-cooled Porsche engine we build.