Camshaft Refinishing/Polishing? Shops?

[TheyCallMe Tim]

Hey does anyone know of any shops that could touch up a cam lobe and re-polish it at a reasonable price? I found a cheap 228 on LS1tech but it has a slightly messed up lobe. Any help would be great! Thanks!

[DETROITMUSCLE]

I'm seeing if this is possible as we speak as my cam has a messed up lobe lol, I'd hold out though and wait on a cam in good running condition.

[1BADAIR]

I wonder if anyone has ever Mikronite finished a cam

[scholtmj]

Bringing this back up.

Does anyone know of a place that will heat treat camshafts? I have some soft material cams that need to be hardened.

[97firehawk]

I would just get a new cam it would probly be cheaper and way better .

[bri2203]

Bringing this back up.

Does anyone know of a place that will heat treat camshafts? I have some soft material cams that need to be hardened.

There is a place on this side of the state but I don't think they do business with the public

[scholtmj]

I would just get a new cam it would probly be cheaper and way better .

I need two new cams and they're either $1875 for both or I buy production cams and get them reground for $300 each - which is why I'd like to properly heat treat my current cams.

These are not for my Firebird.

[97firehawk]

I need two new cams and they're either $1875 for both or I buy production cams and get them reground for $300 each - which is why I'd like to properly heat treat my current cams.

These are not for my Firebird.

Aww ok I see.

[jetice]

Oh, I know what this is for. I wish I knew a place to help you out as I love those cars!

[farmington]

When you heat treat a cam it will bend. Don't know if you'd want to do that. If the journals are already to size you'll have to probably take another 1/2 to 1 thou to get them all round again. If a cam has any real defects in it, they won't polish out. Polishing will only remove a few microns of material so if any damage is there, it can only be reground. Polishing will work on a used cam that is still in decent shape to make it pretty again. I used to grind camshafts at work (GM Powertrain).

[scholtmj]

When you heat treat a cam it will bend. Don't know if you'd want to do that. If the journals are already to size you'll have to probably take another 1/2 to 1 thou to get them all round again. If a cam has any real defects in it, they won't polish out. Polishing will only remove a few microns of material so if any damage is there, it can only be reground. Polishing will work on a used cam that is still in decent shape to make it pretty again. I used to grind camshafts at work (GM Powertrain).

So I could take the cams out of the motor and heat treat them correctly, but I would have to regrind them to bring them within spec? The factory blanks are heat treated before grinding, correct?

[phoenix_rising]

When you heat treat a cam it will bend. Don't know if you'd want to do that. If the journals are already to size you'll have to probably take another 1/2 to 1 thou to get them all round again. If a cam has any real defects in it, they won't polish out. Polishing will only remove a few microns of material so if any damage is there, it can only be reground. Polishing will work on a used cam that is still in decent shape to make it pretty again. I used to grind camshafts at work (GM Powertrain).

Sounds about right to me. I would not mind having some work like this done but for me it may be cheaper to just buy a new cam. Good luck!

[farmington]

If they are already in an engine, the bearings have been ground to size. If you heat treat them they will not be straight anymore and to get them straight they will probably have to be ground undersize and that isn't good. Most cam bearing clearances are on the range of plus or minus .0005" When you consider that a human hair is .003, that's 1/6th of the thickness of a human hair. When cams are made, they first are billet blanks, then they are hear treated then they are finish ground.

[scholtmj]

If they are already in an engine, the bearings have been ground to size. If you heat treat them they will not be straight anymore and to get them straight they will probably have to be ground undersize and that isn't good. Most cam bearing clearances are on the range of plus or minus .0005" When you consider that a human hair is .003, that's 1/6th of the thickness of a human hair. When cams are made, they first are billet blanks, then they are hear treated then they are finish ground.

Well there is my answer. Thanks for sharing!

[masterfab]

Bringing this back up.

Does anyone know of a place that will heat treat camshafts? I have some soft material cams that need to be hardened.

you may want to check in to getting it cryo'd. im not to sure if that will help. but with-out a cam fixture and table to keep it straight will being heated. it will be nect to impossible. try contacting bullit racing cam, or lunati. i know lunati will regrind and repair camshaft and im almost posative the can treat it.

Contact Lunati

Tech Line: 662-892-1500
Hours: Monday - Friday 7AM - 6PM CST
Fax: 662-890-6309

Address
11126 Willow Ridge Drive
Olive Branch, MS 38654

Bullet Cams--Cam Recommendation Form
8785 Old Craft Rd. Olive Branch, MS. 38654 ph. 662-893-5670
bullit builds cams for alot of big hitters some dont like there lt-1 cams. but i could complain on any of the 8 i baught from them. the do good work.