hello all,

i have a 68 FB conv with a older chevy ZZ3 350 with aluminum heads, iam sick & tired of low scraping headers plus too loud for my taste. so, can i install stock castiron exhaust manifolds on aluminum heads ? someone told me not a good idea (something to do with heat).. if so why ?

also has anyone had any luck or are using theses http://www.sandersonheaders.com/product_info.php?cPath=21_23_35&products_id=67

or should i stick to stock exhaust manifolds ?

one more thing,

i know shorty headers will give me ground clearance, but are they as load as full lenth headers ?

thanks
ak