mazda 13b bridgeport

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  • 13B 6-Port Bridgeport Rotary Engine

    13B 6-Port Bridgeport Rotary Engine – High RPM Performance Build

    $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

  • Mazda RX-7 Turbo II 13B Built Engine

    Mazda RX-7 Turbo II 13B Built Engine – Bridgeported Semi-PP Turbo Rotary Motor for RX-7 Performance Builds

    $2,500.00

    The Mazda RX-7 Turbo II 13B Built Engine is designed for rotary enthusiasts seeking a serious performance foundation for high-powered street, strip, or track applications. Built around the proven 13B Turbo II platform, this engine combines upgraded internal preparation, extensive port work, and enhanced structural integrity to create a package capable of handling substantial power while maintaining the unmistakable character of a Mazda rotary engine.

    Featuring a dowel-pinned block, fully bridgeported configuration, and semi-peripheral port design, this engine is built for enthusiasts who demand rapid throttle response, aggressive power delivery, and excellent airflow characteristics. Whether you’re building a dedicated RX-7 project, upgrading an existing FC3S platform, or creating a custom rotary-powered vehicle, this engine provides a strong foundation for naturally aspirated or turbocharged performance.

    The combination of professional machining, carefully executed porting, and proven Turbo II architecture makes this build ideal for serious enthusiasts looking to maximize the potential of the legendary 13B rotary platform.