Small Block Tach Drive Dizzy

Is the main body of the dizzy aluminum?

Do you know if this will work with my MSD 6al ignition? I have a MP Dizzy now with vac advance, thanks.

its kinda heavy so im thinkin cast aluminum but maybe not...

any yes, the only difference between this dizzy (desides maybe curve) is that it had the "port" for the mech tach drive, otherwise its just a chrylser electronic dizzy

but it is a factory peice