DO THE OIL PUMP!!! S&S has a high volume oil pump, and MAN what a diffrence, I put about 40000 on my lower end, and last winter for lack of anything else to do I took my motor apart, expecting to see scuffed, or gouged lifters/carriers. After 40,000 they looked like mirrors, all the rollers were great. NEVER took apart a shovel that looked likr that