.200" diameter roller chain, Cast iron cam sprocket, Heat treated steel crank sprocket, 3 keyway crank sprocket with +/- 4 degree cam adjustment, Manufactured in the USA.
SBC Double Roller Performance Timing Set, 250
Cloyes C-3023X, Kit Sbc Hd Timing Set - Double Roller Performance Racing Parts
SBC Double Roller Timing Chain & High Volume Oil Pump
Jp JP5981, Kit Sbc Billet Double Roller Timing Set High Performance & Racing Par