01 400ex... built...
bored to 89mm, stroked +4mm, heat coated and anti friction coated piston, eichner 440 carb, +1mm valves, ported polished, shortened guides, diff ignition, cam, also cryo'd trans and head and rockers, perma-cool oil cooler, scoops, re-geared, white brother pro meg system, K&N filter... tried to drill lid and install uni vent filters... it sucks them right out of the lid lol
everything you can really do to the engine