We now offer the "treated", specially coated steel gear mounted on our custom made 1045 steel shaft for big block engines.
The "treated" iron gear is a lifetime gear that can be used with either a billet roller cam, an OEM roller or a flat tappet cam. The shafts are made exclusively for us and are available separately by ordering part #6220. The shaft and gear are assembled and pinned here in our shop.
High volume, or high pressure oil pumps are not recommended as they accelerate wear on the cam gear and oil pump drive gear.