[67Lemons]

Since we’ve had all these great threads on cams lately I figured we should have one that lists any manufacturers that offer in house Nitrating of HFT’s

Comp Cams offers in house plasma nitrating as part# 1-111-1 to any camshaft they make, most popular numbers are also available already nitraded ready to go.

https://www.compcams.com/amfile/file...product/32309/

Any other manufacturers offer this service in house? Also at this time I haven’t seen a Pontiac lifter with a coating, to my knowledge Comp is still only offering DLC coated lifters or Tool Steel lifters for the big 3.

[mgarblik]

Originally Posted by 67Lemons

Since we’ve had all these great threads on cams lately I figured we should have one that lists any manufacturers that offer in house Nitrating of HFT’s

Comp Cams offers in house plasma nitrating as part# 1-111-1 to any camshaft they make, most popular numbers are also available already nitraded ready to go.

https://www.compcams.com/amfile/file...product/32309/

Any other manufacturers offer this service in house? Also at this time I haven’t seen a Pontiac lifter with a coating, to my knowledge Comp is still only offering DLC coated lifters or Tool Steel lifters for the big 3.

Reading that Tech Bulletin from Comp Cams, it looks like they are trying to cover all the bases. It does show that they admit it is not a single thing that is causing these cam failures. They try to address the three possible causes of failures. The lubrication, (use our break-in oil), heavy camshaft load, (use outer spring only, or low pressure spring or special rocker arms), soft cams, (have your cam nitrided), bad lifters, (use our lifters with additional oiling). These are all good suggestions IMO.
I do have one other crazy idea not mentioned. Why not make the cam and lifters correctly, out of the right materials, machined and heat treated properly? Millions and millions of flat tappet engines have been built for nearly 100 years without the failures we are seeing on an all too frequent basis. Quality and craftsmanship are not up to the standards we used to take for granted.

[sdbob]

Just my experience. Basically street engines. Running GM lifters,cams usually 068,in 326 not a good combo,400 with 16 dports,421 with 77 heads,SD455. New GM springs stk valves,ck installed hgt. Never a problem I used Kendall oilf
forever ,now Pennzoil. I had press in studs pull out,learned to fix. My race car is SD455 stock GM parts just blueprinted.Pennzoil,NAPA gold oil filters. It runs ok more detail could be faster. I havent had any problems.

[Formulas]

I broke in a new cam this summer ... first time i went with reduced spring pressure and break in 30wt oil... i had Erson new old stock factory 2bbl pressure 1.68 inst. height springs on my Eheads 1.8 inst height ... and Penn grade break in oil ... figured none of it would hurt a thing ... so far so good HFT @ .600 lift...

[Formulajones]

Originally Posted by mgarblik

Reading that Tech Bulletin from Comp Cams, it looks like they are trying to cover all the bases. It does show that they admit it is not a single thing that is causing these cam failures. They try to address the three possible causes of failures. The lubrication, (use our break-in oil), heavy camshaft load, (use outer spring only, or low pressure spring or special rocker arms), soft cams, (have your cam nitrided), bad lifters, (use our lifters with additional oiling). These are all good suggestions IMO.
I do have one other crazy idea not mentioned. Why not make the cam and lifters correctly, out of the right materials, machined and heat treated properly? Millions and millions of flat tappet engines have been built for nearly 100 years without the failures we are seeing on an all too frequent basis. Quality and craftsmanship are not up to the standards we used to take for granted.

Well if the cam cores are coming from over seas and that's what cam companies are using to save a buck then there isn't much you can do about it on this end except take the extra precautions of nitriding and lube lifters. Still the cam companies are partly to blame for selling that end product knowing what they know about over sea cam cores. They are still going to sell them and people keep buying...... I don't see it changing

[steve25]

These days, buy Cam and lifters, confirm that all the lifters spin then send out al 17 items to be cryogenic treated, sleep well afterwards.

[67Lemons]

Originally Posted by steve25

These days, buy Cam and lifters, confirm that all the lifters spin then send out al 17 items to be cryogenic treated, sleep well afterwards.

You don’t hear a lot about cryo treating camshafts but it ends up that there’s a place in the next state that offers it, a little more digging & I found the article below, the writer owns a race shop in the next state as well so I may go that route.

https://www.enginebuildermag.com/201...t-cant-see-it/

https://www.nitrofreeze.com/services...g-auto-parts//

[Formulajones]

I tend to think you should be able to find a place relatively close that offers cryo.

Paul here in Arizona has offered that service for years. The most recent engine he machined for me I had him cryo everything. Block, crank, rods, etc.... It's not an overly expensive process either.

[67Lemons]

Originally Posted by Formulajones

I tend to think you should be able to find a place relatively close that offers cryo.

Paul here in Arizona has offered that service for years. The most recent engine he machined for me I had him cryo everything. Block, crank, rods, etc.... It's not an overly expensive process either.

Yes the two shops that offer it are within 2 hours from me so I can drop the parts off & speak with them in person which is appealing.

Do we know of anyone who has first hand experience with having their cam done?

[Formulajones]

I believe when I had the entire engine done Paul may have done the cam too but I'd have to ask, as that engine got a roller and can't remember what kind of core it was.