Aluminum Casting Options

[r_towle]

Has anyone done any aluminum casting before???

It seems that with all the type 1 head being cast, someone of these manufacturers might be convinced to run off some new castings for type 4 heads......
Maybe twin plug....
Bigger fins???

Better port design
Better flow

Lots of things could be done.....

Has anyone looked into this before???

Rich

[Katmanken]

Kevin,

A big CNC machining center with a rotating turret of bits can hog out a head from a block but it might take a coupla different setups to get all the machined surfaces/bores on all the sides of the heads. Won't be rough in the intake but as machined finish. It would probably be expensive.

The process we use is much like the lost wax process where a wax mold was made, dipped in plaster and the wax was melted out. That's how they make the Rolls Royce Lady hood ornament.

A lot of engine manufacturers are using the process of coating a plastic core and melting it out with molten metal. They are using molded styrofoam shapes such as an entire engine blocks or manifolds. Sometimes cores can be added. I know Saturn uses this for their engines.

This process would lend itself very well to casting fins. As per heat treat, they do it all the time. Many of my parts (at work) are heat treated and cooled in a specific manner to get a certain material property.

I've even seen a titanium casting process (different than above) . That's like turboing a teener. It can't be done. (IMG:style_emoticons/default/laugh.gif)

Ken