Lifters In Stock Eliminator

If bigger diam lifters, bigger cam diam didn't work , SS,comp and Pro Stock would not have lifters over one inch diameter/ huge wheels and 70 plus?s mm cams. It is a performance advantage.

[Alan Roehrich]

Originally Posted by Mad Manz

Thanks for the replies. I think I will staying with the .842 dia lifter. Im just making sure i'm totally legal.
As far as lifters themselves what are the best tool steel solid lifters out there?

Trend.

[Rick J]

Originally Posted by Barry Polley

If bigger diam lifters, bigger cam diam didn't work , SS,comp and Pro Stock would not have lifters over one inch diameter/ huge wheels and 70 plus?s mm cams. It is a performance advantage.

Yes, and if you can't increase cam core and/or lifter diameter, lofting the valvetrain reduces friction and adds hp, but some prefer keeping the lifter in constant contact with the lobe.

[Stan Weiss]

In a thread on another forum they were talking about that many years ago Isky sold "Chilled Iron lifters". If someone today could manufacture these it might solve the problem.


Stan

[Alan Roehrich]

The Isky chilled iron lifters are not harder than either the tool steel or the Johnson Hy-Lift hardened tappets. The only thing harder is carbide or ceramic.

[Stan Weiss]

Originally Posted by Alan Roehrich

The Isky chilled iron lifters are not harder than either the tool steel or the Johnson Hy-Lift hardened tappets. The only thing harder is carbide or ceramic.

Alan,
That was talked about in the pages I posted.


Stan

[Mike Taylor 3601]

Originally Posted by Rick J

Well, oversized lifters are in NHRA Stock Eliminator, just so you know.

How many of those stockers with larger than oem diameter lifters have been through teardown? and passed?

[Rick J]

Originally Posted by Mike Taylor 3601

How many of those stockers with larger than oem diameter lifters have been through teardown? and passed?

Don't know, I was helping a guy do a freshen up on his combo, got the dial caliper out, told him the lifters were oversized, he said they are fine and to finish the build, so I did and never mentioned it again.

[Rick J]

I'm of the opinion that the tech department should put the OE lifter diameter rule in writing right now, and give everyone a year to comply, since it is a labor intensive and costly switch.

[Terry Cain]

Originally Posted by Alan Roehrich

The Isky chilled iron lifters are not harder than either the tool steel or the Johnson Hy-Lift hardened tappets. The only thing harder is carbide or ceramic.

Or Titanium