Noise - Hydraulic vs Mechanical Roller

[68Formula]

What is the order of loudness between
a Hyd. Flat,
a Hyd. Flat with Rhoads lifters (heard it sounds like a solid flat),
and a solid roller?

[Jim Nilsen]

It's not that noisy at at all, you notice it when the hood is up and your listening for it but you just rev it up and it goes away. I had 21 inches of vacuum at idle with a 280 magnum cam and it pulled a lot of torque all the way through. The biggest fun of it is when they get to the top and the cam picks up, it's like a turbocharger kicks in.
You might not like them but you won't regret them either if you install them.

Jim Nilsen

[Turbo Hen]

Why are you going to use the rhoads lifters?

Why not just use a regular hydraulic lifter? Those rhoads lifters are just a patch up for a cam thats too big with a stall thats too low....etc...

-Carm