250 bigred vs 250sx whats different

[RCGUY]

Can someone tell me what parts are differnet from a 250 bigred engine to a 250 sx engine like are the cams the same and is there any internal gearing differences and anything else that is different .

Thanks ,
Jeff

[ClayW]

Gearing differences in the tranny. SX has taller gears making it a little faster. Color. LOl. Not sure about the cam. This question has been asked numerous times on here. Do a search and see what you can find.

[busy44]

Drive shaft diff. length, Axle nuts different size