Rollmaster Double Row Timing Chain Set with Torrington Bearing, .010" Line Bore - ROCS1185LB10

All timing sets are produced using billet steel for both the crank and camshaft
sprockets. Material grades are mentioned further down the page.
Gold sets are nitride hardened and include a one-piece Torrington bearing with an Iwis
chain.

Timing chain sets have 9 keyways unless otherwise stated. Smaller bores tend to be
best suited to 7 crank keyways, although engines like Small Block Chevrolets etc. come
with 9 keyways which allows more adjustment for dialling in the cam. Crankshaft
sprocket keyways are in 2-degree increments unless otherwise noted.

The relationship from crank keyway to camshaft sprocket timing is 2:1 meaning that
the amount of advance or retard at the camshaft is in one-degree increments, IE 1, 2, 3
or 4 degrees.

Multiple keyways are a solid fixture and do not tend to move or work loose like offset
dowels, thus providing a positive locking of the cam timing to what ever position is
desired.

Rollmaster timing sets are light weight and stronger than any other timing set available,
due to the weight savings of billet steel and use of CNC machinery.

All Red Label timing sets come standard with our own premium grade one-piece Iwis
full roller timing chain. Every small and big block Chevrolet comes standard with a
brass thrust washer. You will find Rollmaster has included brass thrust washers to most
of our range including Ford for increased performance and reliability.

Most Gold Series timing sets have a one-piece Torrington thrust bearing fitted and all
have both sprockets nitrided.