408 Build Thread

340sFastback said
Brian is the expert I would go with what he says.

The advantage of beehive springs is a retainer that is smaller and weighs less and lighter spring pressure because the beehive shape dampens harmonics so less spring pressure is needed. More clearance between rocker and retainer too. But if you are running the Comp Pro Magnum rockers they don't need the extra clearance. So there are advantages just that clearance is not one of them in your case.

The advantage and reason to use beehive springs are

1. they use a wound design and that allows them to run and deal with the frequencies better, but this is a issue at higher sustained rpms, which in this case aren't needed and why the person on the ph said what they did.

2. the ovate vs the conical allow less psi to do the same work, but we're talking like 550 psi vs 510 psi, not like its 550 psi vs 300 psi, it doesn't allow for that much less spring psi so it's not earth shattering spring pressure savings.

3. smaller retainer for weight comes as a secondary by it's design

4. they're worse if you break one, breaking a regular spring and you very well may not lose the valve, break a beehive and you're losing the valve

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