Mazda Rx7 12a engine. Assembled to your spec.  Rx2 Rx3 SA22c Fb3s

I own and operate Defined Autoworks, and specialize in rotary engines for over 20 years.

Check out Defined Autoworks online,  contact me off my site if you need something you do not see here.  I can build 2,3, 4 or even 6 rotor engines.  Your Rx machine deserves a new heart! Put life back into it with a Defined Autoworks engine. 

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Here we have a nice 12a mazda Rx7 engine. Will fit 1st generation Rx7 1979-85, Rx2 and Rx3. SA22C FB3S.

Price is for this exact engine shown, but will be fully assembled!  Now for the best part- you have the option to add modifications and get a engine exactly how YOU want. 

This features many expensive modifications already done.  Both rotor housings are mint condition early era 12a units.  Rear iron is brand new NOS, center and front iron side plates are lower mileage with excellent surfaces. Rotors started life as the 84-85 lightweight models. Then custom scalloped on the faces (this is amazing high performance trick) and each one side clearanced for extra safety under higher rpm. Each one was then extenstively cnc lightened making this motor complete with all exotic modifications.  Rotating assembly dynamically balanced to half gram.  All stock intake and exhaust ports. All new water o-rings, oil o-rings, corner seals,  corner seal springs, side seals, side seal springs,  dowel pin o-rings. Apex seals can be chosen, stock or aftermarket. 

Additional options-

Streetport on intake and exhaust $700

Bridgeport on intake, race exhaust port $1100

Oversize tension bolts in 5 positions $950

Race rotor bearings $400

Port oil inlet and exit for more oil flow $150

Factory lower intake manifold $450