Engines

Showing 1–16 of 121 results

04-08 Mazda RX-8 RENESIS JDM 13B 1.3L ROTARY 6 PORT ENGINE
$1,200.00
If you own a 2004 to 2008 Mazda RX-8 and need a replacement engine – or you are building a project car and want a fresh powerplant – this JDM 04-08 Mazda RX-8 RENESIS 13B 1.3L 6 port rotary engine is exactly what you have been searching for.

The Renesis 13B is one of the most advanced rotary engines ever produced by Mazda. It is lighter, more powerful, and more efficient than the earlier 13B-REW found in the RX-7. The 6 port version, in particular, was designed specifically for the RX-8 chassis and delivers the smooth, high-revving power delivery that rotary enthusiasts love.

This is not just a bare long block. This is a complete engine assembly that includes all the major accessories you need to get your RX-8 back on the road or to complete your swap project. You get the motor block and cylinder head, the starter motor, the intake manifold, the alternator, the ignition coils, the spark plugs, and all other accessories attached to the engine.

This is a JDM engine, which means it comes from the Japanese domestic market where vehicles are often maintained to higher standards and driven fewer miles than typical US-spec engines. JDM engines are well-known in the performance community for their quality, reliability, and often lower mileage.

Whether you are replacing a worn-out engine, doing a performance rebuild, or building a rotary-powered project car, this complete Renesis 13B 1.3L 6 port engine is ready to go. Let us break down exactly what you are getting and why this is the right choice for your RX-8 build.
12A Bridge Port (P-Port) Engine Assembly – Renown Racing Built Mazda Rotary Performance Engine

For rotary enthusiasts seeking the raw, high-revving character that made Mazda rotary engines legendary, this 12A Bridge Port (P-Port) Engine Assembly delivers an uncompromising performance experience.

Built by Renown Racing, this race-inspired Mazda 12A rotary engine features a full peripheral port (P-Port) configuration designed to maximize airflow, throttle response, and top-end power. Unlike turbocharged setups that rely on boost, this naturally aspirated engine focuses on pure mechanical performance, rewarding drivers with instant response, screaming RPM capability, and the unmistakable sound that only a peripheral port rotary can produce.

Whether you’re building a dedicated race car, track weapon, circuit racer, or classic rotary project, this engine offers the aggressive performance characteristics serious rotary enthusiasts demand.

With its competition-focused design and renowned rotary pedigree, this 12A Bridge Port (P-Port) Engine Assembly represents one of the most exciting naturally aspirated rotary engine configurations available.
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
13B 6-Port Turbo Motor – Streetported & Dowel Pinned | Built Mazda Rotary Engine for Sale
$2,500.00

The 13B 6-Port Turbo Motor – Streetported & Dowel Pinned is a professionally assembled rotary engine built for enthusiasts who demand reliable performance and future power potential. Combining Mazda’s proven 13B rotary platform with street porting and dowel pin reinforcement, this engine offers the ideal balance of drivability, responsiveness, and durability for both street and performance applications.

Whether you’re building a turbocharged Mazda RX-7, upgrading an RX-8 swap project, or replacing a worn engine with a stronger foundation, this setup is designed to handle the demands of spirited driving and increased boost levels.

The legendary 13B rotary engine has long been celebrated for its compact design, lightweight construction, and exceptional RPM capability. This upgraded build takes those strengths even further, delivering improved airflow, stronger component stability, and the flexibility needed for a wide range of performance goals.

If you’re searching for a rotary engine that combines proven modifications with a fresh assembly and strong upgrade potential, the 13B 6-Port Turbo Motor – Streetported & Dowel Pinned deserves serious consideration.
13B Cosmo Rotary Engine – In-House Built | Doweled, Half-Bridge Ported & Balanced Performance Engine
$3,000.00

The 13B Cosmo Rotary Engine – In-House Built is a professionally assembled performance rotary engine designed for enthusiasts who demand serious power, reliability, and precision engineering. Built using proven rotary performance techniques, this engine combines upgraded internal components with meticulous balancing to create a package capable of handling spirited street driving, track use, and high-horsepower applications.

Unlike a standard stock rotary engine, this build incorporates several performance-focused modifications, including doweled housings, half-bridge porting, lightened rotors, and a fully balanced rotating assembly. These enhancements work together to improve airflow, increase responsiveness, and support higher RPM operation while maintaining the durability expected from a properly engineered rotary build.

Whether you’re planning a Mazda Cosmo restoration, RX-7 conversion, dedicated track car, or custom rotary-powered project, the 13B Cosmo Rotary Engine – In-House Built offers a strong foundation for achieving impressive performance without sacrificing drivability.

Built by rotary enthusiasts for rotary enthusiasts, this engine delivers the character, sound, and performance that have made Mazda rotary engines legendary worldwide.
13B Rotary Engine Available – Limited-Time Price Reduction | Rebuilt Street Port 13B for Mazda RX-7 FB
$2,500.00
If you’re searching for a proven rotary engine for your Mazda RX-7 FB project, this 13B Rotary Engine Available – Limited-Time Price Reduction is a fantastic opportunity. Built using a carefully selected combination of desirable early and late-model Mazda rotary components, this rebuilt 13B offers the performance, reliability, and rotary character enthusiasts demand.

Featuring a street-ported 4-port configuration, strong compression numbers, low mileage since rebuild, and upgraded 3mm apex seals, this engine is ideally suited for street-driven RX-7s, weekend performance cars, restoration projects, and custom rotary builds.

Compatible with Mazda RX-7 FB models from 1979–1985, this engine includes both a clutch and flywheel, providing additional value and helping simplify installation. Whether you’re replacing a tired original engine or upgrading to a stronger rotary setup, this rebuilt 13B delivers the perfect blend of classic rotary performance and modern reliability.

For enthusiasts who appreciate authentic Mazda rotary engineering, opportunities like this are becoming increasingly rare.
13B Turbo II Performance Build – Dowel Pinned & Bridgeported | High-Performance Mazda RX-7 Rotary Engine
$2,000.00

If you’re searching for a serious rotary engine built to handle aggressive power goals, the 13B Turbo II Performance Build – Dowel Pinned & Bridgeported delivers the airflow, durability, and performance foundation enthusiasts demand. Based on the legendary Mazda 13B Turbo II platform found in the FC RX-7, this professionally prepared engine has been upgraded with performance-focused modifications designed to maximize horsepower potential while maintaining reliability under demanding conditions.

Featuring dowel-pinned irons, a fully bridgeported intake configuration, and semi-peripheral port enhancements, this engine is engineered for enthusiasts seeking exceptional top-end performance, aggressive throttle response, and a proven platform for high-boost turbocharged applications.

Whether you’re building a dedicated drag car, a competitive street machine, or a custom rotary-powered project, this engine provides a strong foundation capable of supporting serious performance goals.
13B Turbo II Streetported & Dowel-Pinned Engine – Boost-Ready Mazda Rotary Performance Engine
$2,500.00
13B Turbo II Streetported & Dowel-Pinned Engine – Boost-Ready Mazda Rotary Performance Engine13B Turbo II Streetported & Dowel-Pinned Engine – Boost-Ready Mazda Rotary Performance Engine

The 13B Turbo II Streetported & Dowel-Pinned Engine is a proven performance upgrade for rotary enthusiasts seeking the perfect balance between street manners, reliability, and serious turbocharged power potential. Built around Mazda’s legendary 13B Turbo II platform, this engine features two of the most desirable modifications in the rotary world: professional streetporting and dowel pin reinforcement.

Designed for enthusiasts who want faster spool-up, improved airflow, stronger top-end performance, and enhanced engine integrity under boost, this engine provides an outstanding foundation for both street-driven and track-focused builds.

Whether you’re restoring an FC RX-7 Turbo II, building a custom rotary project, upgrading an existing setup, or preparing for future power goals, this engine delivers the performance characteristics that have made the 13B Turbo II one of the most respected rotary powerplants ever produced.

The combination of streetporting and dowel-pinning creates a highly desirable package that improves airflow while helping maintain engine stability under demanding conditions. The result is a rotary engine that retains excellent drivability while offering significantly increased performance potential.
1984 Mazda 12A Rotary Engine – Good Compression Running RX-7 FB Engine for Sale
$1,500.00
Finding a genuine running Mazda 12A rotary engine has become increasingly difficult as classic RX-7s continue to gain popularity among collectors, restorers, and rotary enthusiasts. This 1984 Mazda 12A Rotary Engine – Good Compression | Running presents an excellent opportunity to acquire a complete, running rotary engine with good compression, making it an ideal candidate for restoration projects, engine replacements, custom builds, or vintage Mazda preservation.

Originally found in the iconic first-generation Mazda RX-7 (FB), the 12A rotary engine helped establish Mazda’s reputation for innovative engineering, lightweight performance, and high-revving excitement. Decades later, the 12A remains one of the most beloved rotary engines ever produced.

This engine was running prior to removal and has demonstrated good compression, two of the most important factors buyers look for when evaluating a used rotary engine. Whether you’re restoring a classic RX-7 to factory specifications or searching for a solid foundation for a rotary project, this engine offers genuine Mazda rotary heritage and proven functionality.

Sold exactly as shown in the photographs, this engine provides an authentic opportunity to own one of Mazda’s most recog
1985 Mazda RX-7 12A Engine – Low Miles Rotary Motor with Strong Compression
$900.00
If you’re searching for an authentic rotary engine for your Mazda RX-7 restoration, replacement project, or classic rotary build, this 1985 Mazda RX-7 12A Engine – Low Miles is an excellent opportunity. Removed from a 1985 Mazda RX-7 equipped with an automatic transmission, this original 12A rotary engine has accumulated only approximately 76,000 miles and shows strong compression numbers.

The legendary Mazda 12A rotary engine is known for its lightweight design, smooth power delivery, unique driving characteristics, and impressive reliability when properly maintained. Whether you’re restoring an FB RX-7 to factory specifications, replacing a worn engine, or collecting hard-to-find rotary components, this low-mileage engine provides a solid foundation.

Included with the engine are the flywheel and counterweight, making this package even more attractive for enthusiasts and builders seeking genuine Mazda rotary components.

With classic first-generation RX-7 values continuing to rise, original low-mileage 12A engines are becoming increasingly difficult to find. This is an excellent opportunity to secure a desirable rotary powerplant before availability becomes even more limited.
1986–1988 Mazda RX-7 FC3S 13B NA Rotary Engine (Manual) | Genuine Mazda 13B Non-Turbo Engine
$1,300.00
If you’re searching for an authentic first-generation FC3S rotary engine for your restoration, replacement, or custom project, this FOR SALE – 1986–1988 Mazda RX-7 FC3S 13B NA Rotary Engine (Manual) offers an excellent opportunity to secure a genuine Mazda powerplant from one of the most iconic Japanese sports cars ever produced.

Removed from a manual transmission Mazda RX-7 FC3S, this naturally aspirated 13B rotary engine represents the pure rotary driving experience that made Mazda famous worldwide. Known for its lightweight design, smooth revving characteristics, and unique Wankel rotary architecture, the 13B NA remains a favorite among rotary enthusiasts, restorers, and engine builders.

Whether you’re restoring a classic FC RX-7 to factory specifications, replacing a worn engine, or looking for a solid foundation for a rotary rebuild, this complete long block provides the perfect starting point.

Priced at $1,300, this engine offers exceptional value for enthusiasts looking to keep a classic RX-7 on the road or build a reliable naturally aspirated rotary project.
1988-1991 JDM Mazda RX7 13B Turbo Rotary Engine 5-Speed Transmission ECU FC3S RX-7 FC For Sale | Complete JDM Engine Swap Package
$2,500.00
If you’re searching for an authentic 1988-1991 JDM Mazda RX7 13B Turbo Rotary Engine 5speed Transmission ECU FC3S RX-7 FC, this complete engine package is an outstanding choice for enthusiasts, restorers, and performance builders alike. Sourced directly from Japan, this complete JDM drivetrain package provides everything needed to replace a tired engine or complete a professional FC RX-7 engine swap.

The legendary 13B Turbo rotary engine remains one of Mazda’s most respected powerplants thanks to its lightweight design, impressive power potential, and unmistakable rotary performance. This package includes the factory 5-speed manual transmission, wiring harness, ECU, and all major accessories attached to the engine, making installation significantly easier than purchasing individual components separately.

Whether you’re restoring a classic FC3S to factory specifications or building a reliable street or weekend performance car, this genuine JDM setup delivers the quality, originality, and performance serious Mazda enthusiasts expect.
1988-1991 JDM Mazda RX7 13B Turbo Rotary Engine 5-Speed Transmission ECU FC3S RX-7 FC For Sale | Complete JDM Engine Swap Package
$2,500.00
If you’re searching for an authentic 1988-1991 JDM Mazda RX7 13B Turbo Rotary Engine 5speed Transmission ECU FC3S RX-7 FC, this complete engine package is an outstanding choice for enthusiasts, restorers, and performance builders alike. Sourced directly from Japan, this complete JDM drivetrain package provides everything needed to replace a tired engine or complete a professional FC RX-7 engine swap.

The legendary 13B Turbo rotary engine remains one of Mazda’s most respected powerplants thanks to its lightweight design, impressive power potential, and unmistakable rotary performance. This package includes the factory 5-speed manual transmission, wiring harness, ECU, and all major accessories attached to the engine, making installation significantly easier than purchasing individual components separately.

Whether you’re restoring a classic FC3S to factory specifications or building a reliable street or weekend performance car, this genuine JDM setup delivers the quality, originality, and performance serious Mazda enthusiasts expect.
1988–1991 Mazda RX-7 FC3S Turbo Engine
$2,200.00
1988–1991 Mazda RX-7 FC3S Turbo Engine – 13B-T Rotary Engine 1988–1991 Mazda RX-7 FC3S Turbo Engine — genuine 13B-T rotary engine designed for the second-generation RX-7 (FC3S). A great choice for restoration projects, engine replacements, JDM builds, and performance applications. Key Features – Vehicle: Mazda RX-7 FC3S – Model Years: 1988–1991 –…
1988–1991 Mazda RX-7 FC3S Turbo Engine (For Rebuild )
$1,200.00

This listing is for a 1988–1991 Mazda RX-7 FC3S Turbo engine – a complete 13B turbo rotary core that is being sold strictly for rebuild or parts purposes. This is not a running engine. The condition of the engine is unknown, and it should be assumed that a full rebuild will be required prior to installation or operation. This engine is not guaranteed to run. It is being sold as-is, where-is, with no warranty, no returns, and no exchanges. The buyer is responsible for inspection, transport, and rebuild.

Now, with that honest disclaimer out of the way, let us talk about what this engine actually is and why it matters.

The 1988–1991 Mazda RX-7 FC3S Turbo is one of the most celebrated rotary-powered sports cars ever built. The 13B turbo engine that powered these cars is legendary in the JDM performance community. It is the engine that defined a generation of rotary enthusiasts. It is the engine that has been used in countless drift cars, track cars, and street builds. It is the engine that still commands respect on the road and on the track.

This particular engine is a complete core. It includes the major components you would expect – the block, the rotor housings, the turbocharger, the intake manifold, and the exhaust manifold. It is missing some parts, but it is a solid foundation for a rebuild project.

This engine is not for everyone. It is for the builder. It is for the enthusiast who understands that the 13B turbo is worth saving. It is for the person who is willing to put in the time, money, and effort to bring a legendary engine back to life.

If you have been searching for a genuine 1988-1991 Mazda RX-7 FC3S Turbo engine for your restoration
1989 Mazda RX-7 FC3S 13B Turbo Engine Assembly – Complete Performance Rotary Setup with GReddy T78-29D Turbo
$2,000.00

1989 Mazda RX-7 FC3S 13B Turbo Engine

If you’re looking for a proven foundation for a serious rotary performance build, this 1989 Mazda RX-7 FC3S 13B turbo engine assembly. Complete performance setup removed from an FC RX-7 and sold as pictured delivers everything enthusiasts look for in a high-horsepower rotary package.

Removed from a Mazda RX-7 FC3S and offered as a complete assembly, this setup features a highly desirable GReddy / Trust T78-29D turbocharger, external wastegate system, and NOS components. Built around Mazda’s legendary 13B rotary platform, this package provides an excellent opportunity for anyone planning a powerful street build, drag car, drift project, time attack machine, or custom rotary-powered vehicle.

Unlike piecing together components individually, this complete package includes everything shown, making it a convenient solution for builders seeking a ready-to-install performance setup.