Rollmaster timing sets are manufactured by Precision Cam Drives of Australia and feature the finest quality high tensile German made seamless roller chain. Precision machined single piece billet crank and cam sprockets, and nine position cam timing adjustability via multiple keyways on the crank sprocket (+/- 8 degrees in 2 degree increments)
The adjustable timing allows you to tune your cam timing for better peak power, or better low end torque (NOTE: it is recommended to check piston to valve clearances when changing cam timing. Failure to do so may result in serious engine damage).
The single row set is a direct drop in replacement for the factory timing set. Simply remove the factory crank and cam sprockets, with the chain, transfer the cam positioner magnet from the factory cam sprocket to the new roller sprocket, and install the new timing set.
Double chain sets are recommended for engines running aftermarket valve springs.