The Gen III & IV GM LS and Vortec V8 engines are being installed into Jeeps with tremendous success. Good headers can make a big difference in how well the engines fit and perform in the bay of your Jeep.
These Novak designed headers start with a generous 3/8" thick manifold flange. Featuring 1-5/8" primary tubes with a 2-1/2" V-band flange collector. Included are two sets of matting flanges in both mild steel and stainless. All joints are beautifully TIG welded. A scavenging cone is included in the collector for maximum exhaust flow efficiency. The header is made entirely of stainless steel and finished off with an aluminized ceramic coating for lower under-hood temperatures and the highest level of protection to the header. Designed in house to clear our motor mounts, spark plug wires, and various Jeep frame, steering and suspension components.
Included are left and right headers, header-to-head serrated flange bolts, flange gaskets, V-band clamps and matting flanges in both stainless and mild steel versions.
A stock starter commonly interferes with block huggers. We recommend a stubby starter to give your headers maximum clearance.
Starter PN: 6494
This header is compatible with Gen III & IV GM V8 engines, this includes both the LS and Vortec engines starting with the LS1 in ’97. Truck Vortec series started in 1999. If your exhaust ports are paired in the center these will NOT fit and you likely have a Gen I or II engine needing these headers.
This is the best fit for most Jeeps, but will not fit the XJ chassis (see here).
First, bolt these headers to the engine using the supplied graphite composite gasket and serrated flange bolts. Next, determine what material your exhaust downpipes will be and choose your V-band flanges accordingly. Supplied are both carbon steel and stainless-steel versions for ease of welding and consistency.
The short, block-hugging design allows the installer to have the exhaust routed in one of the following three popular ways: