This is for an oneil brothers racing 27.2 engine. This is great motor. Very high rev motor. The top end revs forever. This has about a gallon of 91 octane gas with 25:1 oil mix with 927 castor oil. It will come with everything but the shread stack and gbe mount. I had this on my Baja 5sc, but should work with plenty 1/5 scales. No trades at the moment.