Hey Jake, it's been a few months since you have posted this question, hopefully you have solved it by now. If not, yes you can use a big block flywheel and clutch bill, but they use a 1.0 metric pitch gear. The T-maxx uses a.8. But what you can do is use the Spur off of a Revo. I recommend 14 tooth clutch and 36 tooth spur to start out, maybe have a 38 tooth spur on hand just in case it is slow taking off, depending on what size tires you are going to run. I'm also running a .28 Max on one of my t-maxx, and I'm using a three shoe flywheel/clutch and the T-maxx 22 tooth clutch Bell with 56 tooth spur. I had to put a spacer behind the flywheel in order to line the gears up, and it works fine. I did run a steel spur for a while, but I had to replace it about every third tank of fuel as Metal Gears wear out fast. I recommend using a plastic spur, if you mesh them right, and have your slipper adjusted right, it will last forever. Really the only time plastic Spurs break is if the gears are too close/tight and the clutch Bell gets hot and weekends the plastic, or they are too far apart and not making good contact. I got them with a sheet of notebook paper between, push the engine over with minimum force and snug the bolts then go back over and tighten them. You should be able to hold one gear and move the other ever so slightly. Not enough to see but enough to feel. Good luck.
P.s. if you are not running a wheelie bar you better get one. I had to replace the head three times from flipping it before I put one on. Also had to get steel transmission gears, steel axles steel drive shafts and hardened spider gears. This .28 too strong for the stock driveline.
