70cc Stage6 R/T - Polini evo-4 Machined Crank Cases

As you may know the Polini evo-4 as well as the Stage-6 R/T cylinders will not install on your stock 70cc cases without some machining modifications, so we have taken the time to prepare(machine) a few cases for your convenience. These OEM quality 2 piece cast aluminium 70cc cases have been bored out to spec at the cylinder base area in order to fit the Stage 6 R/T cylinder and/or the Polini evo-4 cylinder. Fit both Apex and DRR mini racing quads.

**** The kit is comprised of the left and right engine cases only.

All sealing surfaces have been machined for better fitting of components

We also offer optional gasket matching for 90.00 Gasket matching the cases to improve the airflow transition to your race cylinder will optimize flow by reducing turbulence.