Exhaust Manifold Lock Washers

Nut 7 16 20.

Exhaust manifold lock washers.

Studs are manufactured with a unique nut starter nose that helps prevent cross threading. The standard 3 8 inch wedge lock washers have an outside diameter that is larger than the flange on the header bolts and can interfere with the header tubes so special washers with a small. Nut 7 16 20 unf. This kit is intended for use on aftermarket exhaust manifolds and will not work with the stock manifold or with the stock spacers.

33816s 7 16 lock washer. For intake and exhaust manifold. 34808s this kit includes brass nuts and yellow zinc plated washers. Manifold nut washer kit brass nut and washer kit kit contains 4 nuts and 4 washers.

Each arp accessory stud or bolt kit includes the specific number of parts for your application plus premium quality washers and hex or 12 point nuts as required. 8n 9n 2n 1939 1952. 33816s 7 16 lock washer. I would use whatever your part store can get provided they fit correctly if the sealing surface of the exhaust port and the manifold are freshly milled or in very nice shape a thin coat of high temp silicone will work also i ve used grade 8 bolts with antisieze and lock washers on manifolds with no problems torque evenlly and dont overtorque old manifolds are fragile good luck.

Swap out the old beat up hardware on your 1965 1966 mustang s or 1966 bronco s exhaust manifold by picking up this set of exhaust manifold bolts and lock tab flat washers from amk products. Manifold nut and washer kit for intake and exhaust manifold. Size 7 16 20 use with 11 16 socket.