FORCE 28 Very popular replacement engine, used commonly in many RTR models. Comes complete as pictured with new tapered collet & exhaust gasket, these motors are outstanding value for money, VERY easy to tune & perform well! It should fit in 95% of 1/8 scale cars that currently use a .21 (3.5cc), .25 (4.1cc), .28 (4.6cc), .30, .32 (5.2cc) & .36 size engine. Fitment This motor comes with a slide carby, if you have a barrel carby you may be able to fit it into this motor, otherwise you will have to make up new linkages to actuate the different style carby. Exhaust, this motor features a rear exhaust which uses a rubber gasket to seal against the manifold, which is retained by a long spring. If you're not sure whether it will fit, please contact us for assistance. Specifications Power output 2.9bhp@32000RPM Practical range 2500-32000RPM Includes 28R nitro motor Pull starter Carburetor Silicone exhaust gasket Brass tapered flywheel collet