I'm not impressed with the Retro Fit hydraulic roller lifters. They are more expensive, and heavier than the solid roller lifters and limit cam lobe profiles, spring choices, and RPM.
If going Roller lifter, I would just use the solid roller lifters, even on a mild lobe profile.
I don't have as much an issue with factory type hydraulic rollers, they are lighter than the retro-fit lifters and cost alot less.
I don't have any issues with good aluminum rocker arms for the street. To me the question is not the material, but the quality. On the Trick Flow 240's I ran the recommended harlan Sharpe rockers and I have the HS rockers on two other engines with no problems. The Charger with the Victor MW heads have the T&D rockers and they have stood up to alot of abuse.
