Upgrade/rebuild Feigao 10L??????

[rcjmaxx]

I have a Feigao 10L that has recently bit the dust.I've owned it for years and its always been my "lad rat" motor in numerous projects before the final motor went in place.After years of abuse,just driving around INSIDE the house for less than one minute and the temp is at 150 degrees.My question is,is it possible to upgrade/rebuild this motor for more use? I know that the Feigao motors are more "econo-minded" qualitywise,but can I replace whatever parts needed to make it usable and not "econo-minded" qualitywise? Thanks