The KV997 Cylinder is made from A356 high pressure die cast aluminium and 88mm bored steel sleeves. It features 4 Auxiliary ports, 1 boost port, 2 Auxiliary exhaust ports and 1 main exhaust port per cylinder. The air and fuel are feed into the intake through the side of the cylinder at a 30 degree angle and wrap around the crank as the piston plunges from TDC to BDC. The cylinders are 150mm apart to increase the inner auxiliary ports area for improved bottom end punch.


The 4340 forged crankshaft weighs in at 7.8kg and gives the motor an 82mm stroke while being assembled using NSK C3 bearings. Our rods are 144mm long giving our engine an ideal rod to stroke ratio of 1.76. All pins and surfaces are nitrate treated for increased longevity.


The DC-CDI comes with 3 pre-set maps to take you from 70hp- 100hp- 130hp at the rotation of the switch. The 7075-T6 flywheel weighs 1.2kg and faces away from the engine, with the pickup at the back of the flywheel this enables the user to bolt on a 384 gram total loss flywheel for more responsive power.


Our Black OPS Carburettors stand 84mm tall and are complimented with individual air pods and carbon fibre reeds.