Re: Technology from Jay's garage

Posted by Rusty O\'Toole On 2010/2/11 14:51:15

OK let's get crazy. Have you ever heard of the LOST FOAM casting method?

Pontiac used it to cast aluminum heads a few years back.

What they do is make a cylinder head out of Styrofoam, pack it with sand, and bake it in an oven. The Styrofoam burns away and disappears. Now you have a baked sand mold.

Pour the mold full of molten aluminum in the time honored way to cast a cylinder head.

Would it be possible to make up a full scale head in styrofoam or some other plastic and use it to mold an aluminum head?

Basically the same process as lost wax casting but with styrofoam or plastic wax.

There are lots of foundries around the country that can make small runs of castings IF you furnish the mold.