Conversion Headers
for the
GM Generation III & IV Small Block V8
Header, exhaust, block hugger, Gen III IV, stainless, ceramic coated, V band, #EH001
Kit contents:
- Headers, left & right
- Header flange bolts, serrated
- Collector flange rings
- Collector flanges, V-band style
- Flange gaskets
- Clamps, V-band
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, joined to 1-5/8" primary tubes with a 2-1/2" V-band flange collector. Included are two sets of mating 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. They are designed to clear our motor mounts, spark plug wires, and various Jeep frame, steering and suspension components.
Compatible Engines
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.
Compatible Jeeps
This is the best fit for nearly all Jeeps, excepting the XJ / MJ Cherokee models, for which we recommend these headers.
Starter Clearance
If you run into the rare situation where your starter motor interferes with the collector flange, you can ask for starter motor #6494 at any parts house, which we've found to offer the best clearance.
Related Products
Installation Requirements
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:
- One circuit under the oil pan, just in front of the sump merging into the opposite circuit which is typically run rearward on the side of the Jeep opposite that of the drop of its transfer case.
- As above, but under the bellhousing slope.
- As above, but behind the transfer case. Then, the exhaust tailpipe can exit the Jeep on either the driver's or passenger's side.