What stock engine parts are aluminum?

[bruno]

I'm going to do a long over due engine bay cleaning with Simple Green, and wanted to see which parts were aluminum. I want to spray those parts separately to make sure i don't cause any damage.

From what I've read the Upper and lower intake bodies are aluminum. Are the pullies as well?

thanks,

 

[faststang90]

valve covers,water pump,alt braket and other brakets all i can think

 

[Chuckman]

most everything from the timing cover forward is aluminum: timing cover, ac, ps, smog pump, alt, wp, tensioner, upper and lower intake, t-stat housing, and the bracket for the smog/alt (the ac bracket is steel). stock valve covers are also stamped steel.

maf housing is also alum.

 

[Mustang5L5]

stock valve covers are also stamped steel.
.

They are cast Aluminum

 

[bruno]

OK, that's definitely more parts than i thought. I'll dillute the solution down then just to be sure.

Thanks for the replies.

 

[68stang351]

They are cast Aluminum