These gears fit 273, 318, 340 & 360 with a 484 in. R oller cams are made from steel cores rather than cast iron for hydraulic flat tappet cams. The traditional fix for this was to run a sacrificial bronze gear which failed in short order.
Fits Mopar 273 318 340 360 Camshaft Retainer Plate
SBM 70 & UP WATER PUMP TIMING COVER BOLTS HEX SMALL BLOCK MOPAR 273 318 340 360
Mopar 273 / 318 / 340 / 360 Billet Distributor With Vacuum Advance / Black Cap /
SBM INTAKE MANIFOLD BOLTS HEX STAINLESS KIT SMALL BLOCK MOPAR 273 318 340 360
SBM 70 & UP WATER PUMP BOLTS HEX STAINLESS KIT SMALL BLOCK MOPAR 273 318 340 360