My old n/a v6 had an aluminum intake stock. The 4.1s with the 4bbl intakes were also aluminum. Both the 2bbl and 4bbl n/a Buick v6 intakes were made of very weak aluminum, much weaker and softer than the aluminum used in the SBC intakes. N/a timing cover is aluminum too. The n/a exhaust manifolds are cast iron, plus a smaller radiator that holds less coolant.
The n/a cars got steel rims while the turbos got aluminum. Then its a hodge podge with the bumper supports, some n/as got steel, some got aluminum, and others got the even lighter import bumper support. My n/a Regal has a steel rear bumper support and the import front bumper support.
The n/a cars got steel rims while the turbos got aluminum. Then its a hodge podge with the bumper supports, some n/as got steel, some got aluminum, and others got the even lighter import bumper support. My n/a Regal has a steel rear bumper support and the import front bumper support.
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