rotary power build

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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 13B 6-Port Street Port

    Mazda 13B 6-Port Street Port / Half Bridge Rotary Engine Build

    $2,500.00

    If you’re searching for the perfect balance between street drivability, responsive power delivery, and the unmistakable sound of a performance rotary engine, the Mazda 13B 6-Port Street Port / Half Bridge Rotary Engine Build delivers exactly that.

    Freshly built and designed for enthusiasts who appreciate naturally aspirated rotary performance, this engine combines a carefully executed street port with a half-bridge modification to maximize airflow while preserving reliability for real-world driving. The result is an engine that pulls hard through the mid-range, continues to build power at higher RPM, and produces the aggressive rotary exhaust note that enthusiasts seek.

    Whether you’re restoring an RX-7, upgrading an RX-8, or building a custom rotary-powered project, this freshly assembled 13B offers an outstanding foundation for a responsive and enjoyable driving experience.

    Unlike many turbo-focused rotary builds, this all-motor configuration emphasizes throttle response, linear power delivery, and the unique characteristics that made Mazda rotary engines legendary among performance enthusiasts worldwide.

  • Mazda 13B Racing Street Port Rotary Engine

    Mazda 13B Racing Street Port Rotary Engine – Fresh Build

    $2,500.00

    For rotary enthusiasts seeking a powerful, professionally assembled engine ready for serious street or track performance, the Mazda 13B T2 Street Port Rotary Engine – Fresh Build delivers an outstanding combination of strength, reliability, and tuning potential.

    This freshly built 13B rotary engine has been assembled in-house and features a carefully executed T2 street port configuration designed to improve airflow while maintaining excellent drivability. To further enhance durability, the engine has been dowel pinned, a proven modification that helps maintain alignment under high cylinder pressures and demanding operating conditions.

    Whether you’re building a high-horsepower Mazda RX-7, upgrading an RX-8 project, or creating a custom rotary-powered vehicle, this fresh build provides an ideal foundation. Built with performance in mind and designed to support boosted applications, it offers the perfect balance between street manners and aggressive power capability.

    Ready for installation and built to handle serious horsepower, this engine is an excellent choice for enthusiasts who want a professionally prepared rotary engine without the wait and uncertainty of starting from scratch.

  • Mazda 13B T2 Street Port Rotary Engine

    Mazda 13B T2 Street Port Rotary Engine – Fresh Build | Dowel Pinned High-Performance Rotary Motor

    $2,500.00

    For rotary enthusiasts seeking a powerful, professionally assembled engine ready for serious street or track performance, the Mazda 13B T2 Street Port Rotary Engine – Fresh Build delivers an outstanding combination of strength, reliability, and tuning potential.

    This freshly built 13B rotary engine has been assembled in-house and features a carefully executed T2 street port configuration designed to improve airflow while maintaining excellent drivability. To further enhance durability, the engine has been dowel pinned, a proven modification that helps maintain alignment under high cylinder pressures and demanding operating conditions.

    Whether you’re building a high-horsepower Mazda RX-7, upgrading an RX-8 project, or creating a custom rotary-powered vehicle, this fresh build provides an ideal foundation. Built with performance in mind and designed to support boosted applications, it offers the perfect balance between street manners and aggressive power capability.

    Ready for installation and built to handle serious horsepower, this engine is an excellent choice for enthusiasts who want a professionally prepared rotary engine without the wait and uncertainty of starting from scratch.

  • Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

    Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine | Fresh Build with Street Port & Dowel Pinned Irons

    $1,700.00

    The Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine is a professionally rebuilt performance rotary engine designed for enthusiasts who demand reliability, strong compression, and serious horsepower potential. Featuring a fresh rebuild with zero miles since completion, this engine combines proven rotary technology with carefully selected performance upgrades to create a powerful foundation for street, track, or custom build applications.

    Built by JPR South Jersey and equipped with premium internal components, this engine includes Rotary Aviation cryo-treated apex seals, cryo-treated side seals, OEM-quality rebuild components, dowel-pinned irons, and a professionally completed large street port. The result is a rotary engine capable of delivering exceptional responsiveness, impressive power output, and long-term durability when paired with the proper supporting modifications.

    With compression readings exceeding 100 PSI on all rotor faces, this engine offers the confidence buyers look for when investing in a performance-oriented rotary powerplant.

    Whether you’re replacing an aging engine in your Mazda RX-7, building a high-horsepower street car, or assembling a dedicated rotary performance project, the Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine provides an outstanding starting point.