The Big Block Conversion Kit from Traxxas allows Revo owners the
option of installing various .21-.28 size engines.
Engines that will work with no modifications are O.S. .21 VZ-B
Team Orion WASP .28 and the Dynamite Mach .26
See comments for information on installing other engines.
Components required to install a big block engine in your Traxxas
Forward only conversion kit
Universal engine mount
Manifold with gasket and spring
Flywheel and clutch nut
Forward only shaft
Miscellaneous hardware required for installation
A big block engine with pilot shaft style crankshaft