Where is everyone #5

Look at it this way....if your going to spend $5000 on a cam and crank you can buy a good running b-model cat for that and would drop right in with no mods.

 

That's a Heat treatment and it might be possible to have the old one retreated ?
Call a cam manufacturer and ask ?
Comp Cams in Memphis like that picture that @shogun posted today might be able to answer that question for you ?

 

Hardness is usally just a few milimeters deep. You can see the difference by looking closely at the lobes for the difference in the metal compound.

 

X2, had well known shop turn one. They didnt know they got into soft metal past the hardening. It beat the rod bearings out of it on start up.

 

If its a few millimeters then we're good. Cam lobes have no deep wear (never mic'd them but I can't see or feel any real wear on the roller paths) the marks from condensation were definitely not much below the surfaces.

Thanks again!

 

I've had cranks that had groves on the journals that you could catch your fingernail on. Crokets cloth and elbow grease bolt together and never had a problem. Still with the groves but smoothed down ! LOL

 

Biggest thing is I have no idea if those marks happened when I had the truck or if they happened prior to me having them. I know MartinfromBC rebuilt the engine back in the mid 90's and he only ran it 4 or 5 years after that. The guy who had it after that (the one I suspect I bought it from) only ran it 3 days a week locally for a couple years before it sat in his backyard the next 10ish years.

 

I'm not overly concerned about the crank. Mainly worried that the cam lobes might start flaking off.

 

No kidding.

 

Cross check that is the same part number ?