[dubs68camaro]

My 460 is getting ready to go under the 496 knife real soon. Just pulled the intake off and noticed the wear marks. I just thought I'd throw this out there to be safe. It's no dug in at all. I guess it stands to reason that the roller lifters would leave some kind of a mark on the lobes. Is this normal wear? Thanks!

[SIDEWAYS]

Actually is perfectly normal. So long as you dont feel any deep ridges, those lines will clean-up nicely with Scotchbrite. Just be sure to wash the cam thoroughly afterwards - Scotchbrite is NASTY stuff to an engine!!!!!

[dubs68camaro]

Actually I think I paniced a little too soon. I walked back out into the shop and stuck my little pinky through the slot in the block. 95% of that mark wiped away! whew! lol

Scotchbrite is awesome. I love taking shiny aluminum parts and give them a brushed look with that stuff. I took a polished Hilborn scoop and gave it a killer old school look!

[Fred Ficarra]

Originally Posted by dubs68camaro

Actually I think I paniced a little too soon. I walked back out into the shop and stuck my little pinky through the slot in the block. 95% of that mark wiped away! whew! lol

Scotchbrite is awesome. I love taking shiny aluminum parts and give them a brushed look with that stuff. I took a polished Hilborn scoop and gave it a killer old school look!

You stay away from my stuff!
Yep, no need to panic. I noticed mine was the same and called Lunati. Perfectly normal they said.

[dubs68camaro]

Originally Posted by dubs68camaro

stuck my little pinky through the slot

Looks like I need to be careful what I type!!! LOL

[DOUG G]

Normal... But if you do regular checks as you should....rule of thumb is if you can feel it with your finger nail, you have an issue.

[dubs68camaro]

What's regular? This thing sees 100 miles a year.

[Eleanor's Nemesis]

Then you won't have anything to worry about imo.

Some of the very aggressive profiles that require extreme spring pressures would need to be checked often-not really for cam lobe wear but for lifters failing and springs losing their strength. Lose a lifter and you have some really big problems.

[Busted Knuckles]

Keep an eye on it, you should be fine.
That looks like a cast core. There are a lot of 'em working fine, shouldn't have any issues wit low lift/spring pressure, but I wouldn't go nuts on either.

[DOUG G]

Originally Posted by dubs68camaro

What's regular? This thing sees 100 miles a year.

this .......once a year at your rate
I
I
V

Originally Posted by Eleanor's Nemesis

Then you won't have anything to worry about imo.

Some of the very aggressive profiles that require extreme spring pressures would need to be checked often-not really for cam lobe wear but for lifters failing and springs losing their strength. Lose a lifter and you have some really big problems.

I had a rocker trunnion break and lucky for me the little roller needles didn't come out

[Kevs67RSSS]

Normal

[z28rich]

Originally Posted by SIDEWAYS

Actually is perfectly normal. So long as you dont feel any deep ridges, those lines will clean-up nicely with Scotchbrite. Just be sure to wash the cam thoroughly afterwards - Scotchbrite is NASTY stuff to an engine!!!!!

do not scotchbrite and wash the cam just wip it down with some wd40 and thats it. never wash a cam unless its a steel billet looks like a typaical roller cam to me.good to go

[dubs68camaro]

One thing I have done is some serious research to make sure that my springs match my cam match my lifters. As you guys know, you can have springs that are correctly matched for your roller cam but rated too high for your lifters. Just another way of running into mechancal failure!

For those of you that might have seen my thread on the wear marks on the valve stem tips, crane said that is most definately the fact that the hardened part of the valve tip has been worn off. These heads did have a TON of regular use miles before I just bolted them on to my big block.

[zdld17]

I have to ask, Is this a billet roller? What kind of spring pressure are you running? I had issues with a cast roller .

[dubs68camaro]

That one is a cast comp roller and is not being reused. I'll probably list it on eBay. I'm going with a Lunati this time around. Trying to decide between the 50249, 50250 and the 60212. Will be about 140 on the seat and 350ish open.....maybe a little more.