Cam reground

[Robert Dip]

Trying to educate myself here.....there is often talks on lifter and cam hardness matching and being compatible. Question is....when getting a 'race' type reground cam, and removing a lot of material, what happens to the surface hardness? I would imagine that the original cast cams are surface hardened and a re-profiled cam will loose this surface hardness. Robert

 

[bk53]

My reground cam was Parkerized, i looked it up on wiki. some kind of zinc or manganese phosphating is applied.

 

[PeterC]

Robert - I had an original Ford cam reground to L100 specs for my 59a - then had the new ground unit "parkerized" - here is a previous link to same question with excellent comments and info

http://www.fordbarn.com/forum/showthread.php?t=49853&highlight=parkerized

 

[woodypecker]

When they regrind a cam they take material off of the base circle and the end of the cam that pushes on the lifters is still hard. what is required is a longer valve to make up the difference.

 

[Robert Dip]

I'm back

Peter C....you had the cam "parkerized" after the fact of getting the re-ground L100 back from the folks doing this?? If so, who does this and what if you don't get this process done.

Still clear as mud to me.....Robert

 

[PeterC]

I'm back

Peter C....you had the cam "parkerized" after the fact of getting the re-ground L100 back from the folks doing this?? If so, who does this and what if you don't get this process done.

Still clear as mud to me.....Robert

I will get the contact info and provide - been awhile since that cam was done so must check my records.

 

[Fordors]

Parkerizing is just a surface treatment to assist in break-in of a new cam, it provides the ability to hold oil on the surface. If enough was ground from a lobe to remove any surface hardness it previously had then parkerizing would not provide that. Parkerizing looks a bit like black oxide with a silver tinge to it.