3400 Header Flanges

3/8" Thick Mild Steel Header Flanges Designed for the aluminum head 2.8, 3.1, 3100, 3400, and 3500 LX9 engines.  1 5/8" round ports with no overlap into the ports with the primary tubes installed.  Easy access to the spark plugs without removing the headers.

ARP Header Studs

Headers can represent a sizable investment, so you'll want to keep them securely attached. In addition, exhaust leaks can cost you power and even cause damage to your vehicle. ARP has the answer, in the form of their stainless steel header studs. They're made from premium 300 stainless steel, which …