J8to33,

Is that sirio S23RE a drop in motor on the jato stock chassis? I know it comes with a motor mount for the revo; however, do the holes on the engine match up with the stock engine mount on the jato? I know the OS .21TM is a perfect fit with the stock motor mount. I never hear anything about the .23 sirio motor in jatos on the forums. Most people talk about the OS .18TM, .21TM, TRX 3.3 or big blocks with the New Era conversion chassis.

Mike