Whiplash Cams (318 LA)

They are just like any other camshaft and work best with matching components like valve springs.

Also, FWIW, this is nothing new. Crower was grinding cams in a very similar fashion over 40 years before the Whiplash cams were introduced, so it's "been around awhile". No need to think you're "gettin somethin new" cause you aint.

That said, yes, if your engine now is "in good shape" and you use the correct corresponding valve springs, you can probably expect some pretty peppy performance out of it.

But no way in hell would I make the swap without the valve springs and matching lifters too. No way no how. That's just stupidness.