Mazda Cosmo Engines by Year

The Cosmo was Mazda's rotary personal-luxury coupe.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

Cosmo (CD, sold elsewhere as RX-5) (1976–1978): 1976 · 1977 · 1978

Cosmo (CD, sold elsewhere as RX-5) (1976–1978)

1976 Cosmo engines

Engine	Rated	Offered in
1.3L / 80 two-rotor rotary 13B	110 hp net	Cosmo coupe

1977 Cosmo engines

Engine	Rated	Offered in
1.3L / 80 two-rotor rotary 13B	110 hp net	Cosmo coupe

1978 Cosmo engines

Engine	Rated	Offered in
1.3L / 80 two-rotor rotary 13B	110 hp net	Cosmo coupe

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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