Lifters In Stock Eliminator

[GTX JOHN]

My understanding is that the quality of the cast core (If you still use them)
has deteriorated significantly in the last number of years. the "CWC"
casting cores are extremely difficult to impossible to find anymore.

Dozens of Horror Stories on the forums.

If the lifters do not rotate, the cams go flat in a real big hurry!

[pmrphil]

Originally Posted by GTX JOHN

My understanding is that the quality of the cast core (If you still use them)
has deteriorated significantly in the last number of years. the "CWC"
casting cores are extremely difficult to impossible to find anymore.

Dozens of Horror Stories on the forums.

If the lifters do not rotate, the cams go flat in a real big hurry!

But then again, John, if the lifters don't rotate, most likely the cam was ground incorrectly, probably not enough (or too much) taper on the lobe.
Luckily Mopars have a larger diameter lifter, that's a plus.

[Stan Weiss]

Originally Posted by pmrphil

But then again, John, if the lifters don't rotate, most likely the cam was ground incorrectly, probably not enough (or too much) taper on the lobe.
Luckily Mopars have a larger diameter lifter, that's a plus.

While they are called flat tappets, they are not, and they need to be matched to the amount of taper on the lobe.


Stan

[Frank Castros]

If Charlie Wescott is listening this may be an opportunity for Militia to make some hay.

[1320racer]

Frankie, welcome back

[Frank Castros]

.......

[GTX JOHN]

Originally Posted by pmrphil

But then again, John, if the lifters don't rotate, most likely the cam was ground incorrectly, probably not enough (or too much) taper on the lobe.
Luckily Mopars have a larger diameter lifter, that's a plus.

However, often it is the crappy quality or metallurgy of the new Chinese lifters
or sloppy machining that causes them not to rotate. Flat tappet
lifters are also not flat either (At least to start with hopefully)

[Mark Ugrich]

Maybe this will help someone. Daniel Powell is a pretty sharp guy.

[ProfessorRock]

Hey People .I am going to give you the best solution that all of us have
in a post later today. And hopefully you can use this untill there is a rule change. i will clear this with Ken again before posting. But i can hardly keep up after PRI. So be patient those of you who know me. We are not well known YET ,so i am concerned we cant deliver quickly. Cam and lifters are now a small part of our business.Thanks Rocky

[Alan Roehrich]

FWIW......


We never lost a Shubeck without there being a reason outside the lifter itself. Of course, I treated them like they were the finest crystal. And I was obsessed with valvetrain control and maintenance. Honestly, if I could get someone worth a damn to make them, I'd use them.



We did have a rather ugly incident with PPPC, and I refuse to use their products. A member here had an engine utterly destroyed, was intentionally deceived, and seriously mistreated.


I have used and sold Trend for over a decade, zero failures, zero complaints. Well, other than price and delivery delays.



I won't use DLC coated lifters. And they won't work with cast cam cores, or certain oils. Talk to the people who make and apply the coatings, not the people who sell parts.


The cam companies don't want to make flat tappet cams anymore. CWC really does not want to cast cores, because there's no volume. Steel cores and flat tappets are an entirely different deal, and require different practices. The sole reason you were able to buy cast core cams is because the OE's and some parts suppliers were buying 10,000 at a time, 2-3 times a year.



There are a ton of terrible flat tappets out there, and an extremely limited number of high quality flat tappets.


Johnson HiLyft makes some really nice stuff, they have some lifters that are 60+ Rockwell C, ground, not polished to an exceptional finish, and they're available with the EDM oil hole done BEFORE the finish grind is done on the face.


People are careless with lifter bore location and size. It causes flat and roller lifter failures.


People think that they're chemical engineers, and they're going to make their own race oil. They're killing their engines.


Converting everyone to roller lifters will require a massive number of entirely new lobe designs. The vast majority of cam companies don't even have a lobe designer anymore, they don't want one, and they don't want to design a lobe, or ten, for you, the three cam a decade customer.


It's not a simple rule change. And if you let that genie out of that bottle, you'll never get it back in. And the genie won't care what it destroys.