This 1/16th scale ribbed blower belt fits Revell Hemi engines, as well as other engines, but the pulley cogs may be different. 

It is cast out of urethane rubber and stretches enough to fit nicely over the kit pulley setup. 

It can fit inside or outside of the idler pulley. 

It has the same width dimension as the kit belt and includes nicely detailed teeth.

One belt by Futurattraction, 1/16 scale