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$2,500.00
The 13B 6-Port Bridgeport is a serious rotary performance build designed for drivers who want more than a stock 13B can deliver. This engine features a professionally executed full Bridgeport on the 6-port 13B platform, completed entirely in-house with precision machining and careful attention to port geometry.
Bridgeporting is one of the most recognized modifications in the rotary world, offering increased airflow and improved high-RPM breathing. The result is a more aggressive powerband, stronger top-end performance, and the unmistakable sound that has made bridgeported rotary engines legendary among enthusiasts.
Whether you’re building a dedicated drag car, a track-focused RX-7 or RX-8, or a high-performance street machine, this engine provides a solid foundation for naturally aspirated or custom performance applications where airflow and RPM capability are priorities.
13B 6-Port Bridgeport Rotary Engine – High RPM Performance Build
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$3,500.00
Product Overview
For Sale: Rebuilt Mazda RX-7 13B Turbo Bridge Port Motor (SER5 Update) – Block Only
If you’re searching for a serious foundation for your next rotary performance build, this Rebuilt Mazda RX-7 13B Turbo Bridge Port Motor (SER5 Update) – Block Only represents an increasingly rare opportunity. Freshly rebuilt and never started, this engine combines the legendary performance potential of Mazda’s 13B turbo rotary platform with desirable SER5 large dowel upgrades and professional internal enhancements.
Built specifically for enthusiasts who understand the value of a properly prepared rotary engine, this motor features a bridge-ported configuration for improved airflow, brand-new race apex seals, new corner seals, fresh springs, and a new water retention kit. The engine remains essentially untouched since assembly and was only removed from protective wrapping for inspection and photographs.
Whether you’re restoring an FD RX-7, building a dedicated track machine, assembling a high-horsepower street car, or creating a custom rotary-powered project, this rare SER5 large dowel engine provides an exceptional starting point.
Rotary enthusiasts know that finding a fresh, professionally rebuilt 13B turbo engine with the desirable SER5 update is becoming increasingly difficult. This engine eliminates the uncertainty often associated with used rotary motors and provides a proven platform ready for completion according to your specific goals.
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$1,700.00
If you’re searching for a professionally rebuilt rotary engine that combines proven Mazda engineering with performance-focused upgrades, this Rebuilt Mazda RX-7 13B Turbo Bridge Port Motor (Series 5 Update) is an exceptional opportunity.
Built from a genuine Mazda Series 5 13B turbo motor, this engine has been freshly rebuilt and has never been started since assembly. The motor remains wrapped in protective plastic and was only briefly uncovered for photography purposes, ensuring it arrives in pristine condition.
What makes this build particularly desirable is its rare large dowel configuration, featuring front and rear plates matching the sought-after Series 6 design. Combined with a professionally executed bridge port, new race apex seals, fresh corner seals and springs, and a new water retention kit, this rotary engine is designed for enthusiasts who demand reliability, performance, and long-term durability.
Whether you’re restoring a Mazda RX-7, building a high-performance street car, or preparing a serious track machine, this rebuilt 13B turbo engine provides an excellent foundation for your next project.
