Modular internal combustion engine with adaptable piston stroke

A process for expanding a modular engine, the modular engine

• having a manifold assembly, the process comprising:
• removing the manifold assembly from the modular engine, the modular engine comprising at least one engine bank and an existing shaft, each engine bank having a cam crank assembly and an exhaust channel, each cam crank assembly comprising a cam crank, an intake cam, an exhaust cam, and a securement assembly, the intake cam and exhaust cam removably attached to the cam crank, the cam crank intermediate the intake cam and the exhaust cam, the cam crank parallel to the intake cam and the exhaust cam, and the cam crank, the intake cam, and the exhaust cam oriented to be perpendicular to the shaft upon installation of the cam crank assembly on the shaft;
• loosening an existing cam crank assembly securement assembly from the existing shaft;
• removing the existing shaft from the modular engine;
• installing a longer shaft;
• securing the existing cam crank assembly securement assembly on the longer shaft;
• installing supplemental engine bank, having a supplemental cam crank assembly, on the longer shaft such that the exhaust channel of the existing bank is incorporated into the exhaust channel of the supplemental channel;
• securing the supplemental engine bank to the longer shaft with the supplemental cam crank assembly securement assembly;
• and
• replacing the manifold assembly.