Re: Billet cams and lifter supply
 

I still remember the spring numbers, 98 lbs seat and 202 lbs open. I was tossed once for being 2 lbs over. I'd be fine going back but that's just me being a purists for Stock. True hydraulics and only oem solid lifter cars. That would make nobody going 1 second under.
I not saying that it should go to the old way, just an opinion.
Casey Miles
248H Stock

Re: Billet cams and lifter supply
 

Hydraulic Chevy cams were allowed the stock spring at about 84-86lbs on the seat. Single spring with a flat damper.

6000 rpm give or take a few hundred was all you were good for...1970 Stocker....

Re: Billet cams and lifter supply
 

No idea is they still make them, or they would be applicable for use in a Stocker engine, but I have an old Iskenderian Cams catalog, and they had a line of "Hardface Overlay" cam lobes, to be used with their "Chilled Iron" lifters. Anybody familiar with those items?

Re: Billet cams and lifter supply
 

In this whole thread, maybe 10 actually race Stock. Nobody currently racing is going to want to go slower so that's a huge fail for all the valve spring pressure guy's.
2nd It's 2022 not 1967! Get over it!
3rd Rollers don't effect the looks or purpose of the class. It adds reliability. Again it's 2022!
No parts = no racers!!! JMO

BTW This bubski talking in the 3rd person is just a pathetic Look at me ploy! Grow The F up!

Re: Billet cams and lifter supply
 

Let's make something perfectly clear Bob, first of all I DO race Stock. I really don't mind "going slower". I've probably done it for as long or longer than most on this board. And probably with more combos in more cars than you and your buddys put together. If "going slower" means having the rules actively enforced and having the bogus parts and combos done away with then count me in for "going slow".

Rollers DON'T add reliability, they just allow bigger, more aggressive lobes that allow higher engine speeds that will make bigger and more "manipulated" cylinder heads more of a necessity which will just drive costs higher and make engine failures more frequent. Now that right there sounds like a good way to get rid of Racers.

REAL RACERS, (not the people who order parts from a second party and have them assembled by a third party so that they can have their rig driven to a track by a forth party so they can fly in and rent a Mercedes and drive to the track) will ALWAYS find the stuff that they need to go racing. That's what REAL Sportsmen Racers do!

Yes, it is 2022 and if NHRA and the Racers themselves don't start actively trying to come up with ways to lower costs and do away with the interpretations (and manipulations) of the written rules, we probably won't see 2032. The way everything else is going, I doubt that we will anyway.

Re: Billet cams and lifter supply
 

No, I don't run NHRA stock.

You are right! Lets move into the 21st century and let you update your parts.

Maybe NHRA should move into the 21st century as well. No need for tech. They need to contract with someone to write some software which will take your car's weight, aerodynamics, track weather conditions, etc. and analyze your runs split time and my guess is give most of you some HP.

Stan

Re: Billet cams and lifter supply
 

The core issue and has been for many, many years is the NHRA's inability, or desire to enforce the Stock Eliminator Rule Book.
Racers will do anything to run with the big dogs, it's the sanctioning body's responsibility to monitor and enforce the rules. BIG FAIL on its role to do so.

Re: Billet cams and lifter supply
 

Looking at the photograph of damage to the cam lobe makes me ask one question. What brand/type of oil was used in this engine?

The reason why I ask is my new 350 engine had about 30 runs on it and began to run slower and slower. I checked the leak down and one hole had 40%. I sent the engine back to my engine builder. It was discovered that all 8 pistons were ruined, along with the tool steel lifters. I always used Joe Gibbs oil and never had any problems. Gibbs oil was sold and manufactured under the name of DRIVEN oil. Samples of the used oil were sent in for testing. The results have not been received yet. Has anyone had issues using DRIVEN oil?

Re: Billet cams and lifter supply
 

This is a "steel" stocker cam that had Shubeck lifters. 240/500 spring pressure. VR1 oil most of the time. Gibbs or Driven when needed. May have 200 runs on it. 15 of the 16 lobes are like this. Notice it's in the same place on the lobe. Joe Shubeck told me this is from a poor core or poor heat treat. He said to treat the cam lobe as a new "highway". As soon as the first little imperfection is found and tires keep rolling over the same area you create a "chuck hole". Thats what we have here.

Re: Billet cams and lifter supply
 

Nitride cast cam. 200/400 spring pressures. The most common issue. Tool steel or Shubeck lifters. Didn't matter. Oil, didn't matter. I was told by a cam salesman that if you got a year out of a cam like this you were "doing good". Thats why we switched to steel cams. The problem continues.
Going back to "pure stock" rules will not help. Just lost a few lobes in a stock rebuild 350 Chevy. We did everything we could for break in. Oil, additive, 1.2 rockers, 1/2 hour run time, etc, etc,. Cores are junk, lifters are junk, oil is junk, heat treat is junk.
Hate to say it.. Seems to start with the EPA!! We can't build what we need!!