Cometic GM Gen-3/4 Header Gasket Set

Cometic GM Gen-3/4 Header Gasket SetCometic HTS exhaust gaskets consist of multiple layers of sturdy stainless steel, providing superior flexibility and corrosion resistance. The outer surfaces are coated with a heat resistant, graphite based material to deliver a premium seal capable of enduring various sealing pressures and surface conditions. These Headers gaskets are designed for 1999 2013 Silverado and Sierra models equipped with 4. 8L, 5. 3L, 6. 0L, and 6. 2L engines.

These are constructed entirely in house from USA processed aluminum

Texas Speed Hardened Chromoly Pushrods

so it is always best to verify the length you need to avoid any valvetrain issues

Titanium Retainers

Earlier years have the upper control arms mounted on top of the chassis

Billet adapter

The 1/2" thick billet aluminum flange ensure a tight seal with the manifold you're bolting it to and the unique radially formed plenum will ensure she will handle whatever boost you choose to throw at it

0 applications have a 2 into 1 exhaust system which our y pipe system will not work with

Top O-Ring Diameter

to your 4500 flanged intake manifold

Fuel Injector Connection injectors offer hassle-free installation in listed vehicles

O2 bung provisions pre & post turbo