Re: Lifters In Stock Eliminator
 

I run flat lifters and am super paranoid about break in procedure. 50# on the seat and ensure it fires(timing/fuel/fans/etc) run for 30-45 minutes 2-2500 rpm. I have never in my life wiped a cam and don't plan on it now. If I do, it will not be because of me.

Pull the 50# springs and Install correct springs, good to go.

Re: Lifters In Stock Eliminator
 

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!

Re: Lifters In Stock Eliminator
 

I don't think it's that simple. Is there a significant performance advantage to roller lifters that I don't know about (outside of reliability of course)? The engine doesn't have factory rods/pistons but they are legal as long as they are the right size, why not put better lifters in it too?

I genuinely do not understand. If you are trying to say that running flat tappet cams keeps the racing more pure to it's origin and makes the entry level more difficult and punishing to choose that combination, then just say that. I may not like it, but at least it's a fair point. After all, I chose the combination that uses them, now I have sleepless nights because of it.

Frankly, I like the idea of using newer technology to improve longevity and my quality of life lol.

Re: Lifters In Stock Eliminator
 

I don't think that anyone is being punished. The combinations are what they are.

I feel that a roller profile would most likely be quite a bit more aggressive than a flat tappet.

My point in posting is not to push for a change, but to see if it is really an issue. Want and need are two entirely different things...

Re: Lifters In Stock Eliminator
 

Maybe punished gives the wrong connotation. Seems like you see what I'm trying to say anyway.

In my very limited experience, flat tappets are fine to stay, but I'm not one that has experienced flat tappet failure...yet.

Re: Lifters In Stock Eliminator
 

To get stuff to live Jerry and I (mostly Jerry) made a break in fixture for our cam and lifters.

Re: Lifters In Stock Eliminator
 

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.;)

Re: Lifters In Stock Eliminator
 

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


Stan

Re: Lifters In Stock Eliminator
 

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

Re: Lifters In Stock Eliminator
 

Frankie, welcome back :D