Mazda rotary restoration

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    Mazda Rotary Porting Plate – 12A / 13B Performance Upgrade for RX-3, RX-4 & RX-7 SA22C

    $300.00

    The Mazda Rotary Porting Plate – 12A / 13B (RX-3, RX-4, RX-7 SA22C) is a highly sought-after performance component designed for rotary enthusiasts looking to maximize airflow and unlock additional performance from their engine build. Whether you’re rebuilding a classic Mazda rotary engine, performing a bridge port conversion, or planning a full peripheral port race engine, a quality porting plate is an essential part of the process.

    Designed for compatibility with Mazda’s legendary 12A and 13B rotary engines, this porting plate is suitable for a wide range of classic applications, including the Mazda RX-3, RX-4, and first-generation RX-7 SA22C. Built to OEM standards and engineered to withstand the demands of high-performance rotary engines, this component provides the foundation for increased airflow, improved engine breathing, and enhanced power potential.

    For rotary enthusiasts, airflow is everything. The Mazda Rotary Porting Plate helps optimize intake flow characteristics while supporting a variety of porting strategies, making it an excellent choice for both street-driven and track-focused builds.

  • Mazda Savanna RX-7 SA22C GT

    Mazda Savanna RX-7 SA22C GT – 12A Rotary Engine (P9-165 G S55) | Genuine First-Generation RX-7 Engine

    $1,100.00

    For enthusiasts restoring one of Mazda’s most iconic rotary-powered sports cars, finding an authentic early-production engine can be one of the most difficult parts of the project. This Mazda Savanna RX-7 SA22C GT – 12A Rotary Engine (P9-165 G S55) represents a rare opportunity to acquire a genuine first-generation RX-7 rotary engine removed from an original Japanese-market Savanna RX-7 GT.

    The legendary 12A rotary engine helped establish Mazda’s reputation for innovative engineering and lightweight sports car performance. Compact, high-revving, and uniquely smooth, the 12A remains one of the most sought-after rotary powerplants among collectors, restorers, and vintage JDM enthusiasts.

    This complete long block assembly offers an excellent foundation for an OEM restoration, period-correct build, museum-quality project, or rotary engine rebuild. As surviving examples become increasingly difficult to source, genuine SA22C engines continue to gain value among collectors worldwide.