This is my first engine (ish) I used the Kohler CH750 engine and a modified Hayabusa trans this is in a boxer/flat en...

Concept Engine

Machine Type 4-Stroke, 8-Valve, Parallel Twin Cylinder Machine Capacity 249.7 cc Fuel Supply System PGM-IF Diamete...

Engine : 4-stroke, Parallel Twin, DOHC, liquid-cooled Displacement : 399cc Bore x Stroke : 70.0 x 51.8mm Compress...

3.0L F1 W24. Revs to 16.5k RPM. 8-speed transmission.

When an inline 5 and inline 6 kiss.

Like 2 opposed inline 7s. Even-fire.

Very unique sounding engine. Like a mix of V10, L6, and L4 all together.

LS7 7.0L 428ci (Stock Configuration)

LS6 5.7L 346ci (Stock Configuration)

LS3 6.2L 376ci (Stock Configuration)

LS1 5.7L 346ci (Stock Configuration)

A V20 with 4,600 HP.

Multiples of 7 make the best engine sounds.

Basically 2 inline 9s on 1 crankshaft. Power stroke every 40° of rotation makes it pretty smooth.