W12 engine based on the Holden - GM 3.6L V6 LFX Engine design (https://catalog.engine-sim.parts/parts/60) by ItsameAs...

W8 engine based on the Holden - GM 3.6L V6 LFX Engine design (https://catalog.engine-sim.parts/parts/60) by ItsameAsh...

A 6 cylinder made from a regular i4 and a 360 degree i2 (or middle 2 cylinders of an i4) welded together. This result...

A 6 cylinder made from a regular i4 and a 180 degree i2 (or half of an i4) welded together. This results in 2 cycles ...