Approximately 40% reduction in size and weight of a conventional engine (for similar applications and capacity) combined with improved fuel efficiency substantially increases power/torque/weight ratio.

Can be designed to be in many configurations such as X4, X8, 60degV2, 60degV4, 60degV6, 60degV8, 120degV2, 120degV4, 120degV6, 120degV8, Inline2, inline4, inline6, single cylinder, etc...

Less and lighter components. As a result of fewer and lighter components, it is more easy and cheaper to manufacture than conventional engines.

Identical type cylinder head assembly (“top end”) to conventional engines. Most existing head technology can be either adapted or utilised.

Flexible design - can be four-stroke, two-stroke, petrol, diesel or gas, natural of forced aspiration.

Eliminated irregularly reciprocating components such as connecting rods.

Piston acceleration rates are the same from BDC as it is from TDC requiring no "second order" balancing.

Rotational forces are reduced via the counter rotating cam.

Torque output can be varied using a fixed capacity and piston stroke.

The CCE can be designed to operate at greatly reduced operating speeds while delivering high torque output.

Substantial reduction in stroke reduces heat loss through cylinder wall.

Extended piston dwell aids a more complete combustion.

Maximum mechanical advantage can be applied to output shaft at only 20 degrees ATDC utilising high cylinder pressure early in the stroke, compared to around 60 degrees ATDC for conventional engines.

Flatter high torque curve decreasing the need to operate at high RPM reducing fuel consumption.

Lower emissions can be achieved due to increased control over combustion.

Little or no bore contact/piston side thrust, which reduces wear on cylinder bore.

Can have different port timing on compression stroke than power stroke allowing better control (two-stroke).

A hollow output shaft can be utilised for specialty applications, such as peristaltic pumps.