For sale is a Mazda RX-7 FC3S 13B naturally aspirated (NA) rotary engine removed from a 1986–1988 FC-chassis RX-7 equipped with a manual transmission. This OEM Mazda engine retains its factory NA configuration and is well suited for stock replacements, restorations, or rotary projects requiring a non-turbo setup.
The 13B NA engine is known for its reliability, smooth power delivery, and simplicity compared to turbo variants, making it a popular choice for drivers and enthusiasts alike.








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