I have a set of 6X heads that I want to prep for rebuild. I have read about baking heads for removal of oil, sludge, carbon etc. Does anyone know how well the process removes buildup in the internal passages? I have a kiln and bead blaster and just need a temperature recommendation and length of time for baking.

Any input appreciated

Thanks,
Grant

I wouldn't bake in a kiln, unless you had a good exhaust system. There is alot of nasty noxious gasses that burn off and take alot of time.

500 degrees, sometimes 550 for cast iron. Sometimes it took upwards of 45 minutes for a good burn.

We "cook" them at 400 for about 1/2 hour. The machine has an "open" flame, so a static oven WOULD take longer. We also have an "airless shot blaster" for removing the dried ash. Highly recommend against doing this "at home". Our system (EPA approved) has a built-in afterburner that eliminates the smoke from the burning oil product. Banshee's right. NASTY stuff.

There are no "internal passages" in a 6X head, except the water jacket.

FWIW

Jim

Thanks for the input guys, sounds messier than I thought and will leave it to the pros.

It will cost you $50 or so to have them done and looking like new.

How do you season the heads for baking?

Find a good dry rub, lol!!!


Steve

Put'm outside during down pours.
Takes a couple 2-3 over nighters.

Youse guys,... (:-