LC10 was the original name given to a series of very small three-cylinder, two-stroke engines built by Suzuki Motor Corporation in the 1960s and 1970s.

In an effort to reduce CO, HC, and NOx emissions, the EPIC (Exhaust Port Ignition Cleaner) system was also installed.

These took part in the JAF Grand Prix Formula Junior class as well as "MR" (Minicar Racing) meets.

[6] Thus equipped, the Can-Am style Fronte RF with Mitsuo Itoh at the helm took the victory at the 1970 "Junior Seven Challenge Cup" race, held at Fuji International Speedway, with an average speed of 130.9 km/h (81.3 mph).

The T4A was fairly short-lived (only used in the Fronte 7-S for a little over two years), and was soon replaced by an unrelated "full size" (550 cc) engine called the T5A/T5B.

[11] The emissions strangled T4A put out 25 PS (18.4 kW) at 4,500 rpm in its final "TC53" form: specific power was 54% of what a 1972 Fronte GT had managed.