Allens Performance Ltd.

Jimmy Doom Special Doomster Engine

September 4th, 2016

Feast your eyes on the Mammoth Vee Twin of Doom!

Here you can see a prototype for a run of extra special engines conceived and developed by the most eccentric Cylinder Head guru in the North, Jimmy Doom.

The bore/stroke of 4.250″ x 4.250″ gives a total capacity of 120 cu in (around 2 litres.) 2.100″ valves are fed by VM44 carbs supplied by Allens Performance Ltd. Cam lift is 0.650″ and the exhaust headers are a full 2″ diameter.

Doomsters are destined for a new wave of muscle bike so watch this space!