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cleszkie · 02-17-2009, 01:43 AM

Jaros44sr - The Dorman ramhorns come with studs, washers, lock washers, pinch nuts, and manifold donut gaskets. I used one washer, one lock washer, and a pinch nut on each of the studs with a dab of anti-seize. What is the benefit of using brass nuts? Do they resist corrosion better?

The instructions that came with the manifolds suggested that they be installed without gaskets between the manifold and head for optimum sealing. However, I was not certain that my heads were perfectly flat to mate to the manifolds, so I used the Felpro semi-metal gaskets for a stock application (part #MS 9275 B).

BTW, the Dorman part numbers are 674-504 and 674-503 for the right and left manifolds.

02-17-2009, 01:43 AM	#4
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: Headers to 2.5" Ramhorns Jaros44sr - The Dorman ramhorns come with studs, washers, lock washers, pinch nuts, and manifold donut gaskets. I used one washer, one lock washer, and a pinch nut on each of the studs with a dab of anti-seize. What is the benefit of using brass nuts? Do they resist corrosion better? The instructions that came with the manifolds suggested that they be installed without gaskets between the manifold and head for optimum sealing. However, I was not certain that my heads were perfectly flat to mate to the manifolds, so I used the Felpro semi-metal gaskets for a stock application (part #MS 9275 B). BTW, the Dorman part numbers are 674-504 and 674-503 for the right and left manifolds.