RB and a roller Cam

Back in the day I use to put Engles RK 48 in 440's for customers as a first step into roller cams on the street "I must have put in 30-40 RK 48's"...Nothing done to the block as far as oil mods go...Guys would put 5000 miles a summer on their cars no problem...
In the spring I would set the lash and check the oil pump drive for them and away they would go for another summer.
The only thing I would stress to them was to run an oil additive like KleenFlow's 205 or Wynn's 50 or 80 plus and keep the oil CLEAN..!!
You can't be making 550-600 hp with a 440 and go a 1000 miles between oil changes on the street and not expect to have to change the bronze oil pump drive gear...