street ported Mazda engine

The Mazda 13B Street-Ported Rotary Engine – Dowel Pinned Build is a professionally assembled performance rotary engine designed for enthusiasts who want a proven combination of power, durability, and drivability. Featuring street porting for increased airflow and a dowel-pinned block for added structural integrity, this fresh-build 13B offers an ideal foundation for serious street, track, or custom rotary projects.

Whether you’re building a high-performance Mazda RX-7, restoring a classic RX-3 or RX-4, or creating a one-of-a-kind rotary-powered vehicle, this engine delivers the legendary characteristics that have made Mazda rotary engines famous worldwide. The street-port configuration enhances breathing and horsepower while maintaining excellent drivability, making it one of the most popular upgrades among experienced rotary enthusiasts.

Built for reliability and performance, this engine is ready for installation and prepared to serve as the heart of your next rotary-powered project.