This is our Derringer CL (150) engine designed to run in the Nitro Funny Bike class. This engine combination has has set many records & won numerous AMRA NFB Championships. We locate our oil pump in the rear of the cam case and drive it off the #1 cam. This un-clutters the front of the engine (where the oil pump is located in other engines) and uses two less gears to drive it. This engine sells for (call for pricing) complete with oil pump, less intake (s) and injector (s)