Trick Flow heads

I hear you and agree with what you are saying which is why I called Mancini to begin with, however when their own employee said he wouldn't recommend running the Mancini rocker, I bit the bullet and went with the HS's. I'm already $5k over my engine budget, what's another $400... :D


That employee is an idiot and should be fired. He sent you down the rosy path of wrongness. Just stupid on his part.

I can tell you that I doubt you will ever abuse a rocker arm or valve train like I have. IMO, needle bearings on a shaft that bad are a horrible idea. All that does is make the rocker weak. That’s bad.

I ran Crane Gold rockers for years and never broke one. That’s with 340-360 pounds on the seat and as high as 900 over the nose. At 8500 RPM. Sometimes with steel valves.

IMO I’d send those back and get the Mancini rockers without the needle bearings.

Look around. T&D, Jesel, Manton and probably others ALL make bushed rockers so you don’t have to run needle bearings on a reciprocating shaft.

They also make them in steel, because in most cases it’s better. BUT, for what you are doing those Mancini rockers are a better product.

Leave the needle bearings for the little diameter shafts. And the Chevy guys.