Specifications

jeep exhaust (1941-79)

1941-79 JEEP EXHAUST

We design & manufacture our own header systems to complement the engine conversion business. We started manufacturing

custom headers about the same time we started manufacturing adapters. There was a definite need for headers that would fit the

various engine conversions. Through the years, our designs have evolved into header applications that were most typical. Our header

systems are for non-pollution control, engine converted vehicles.

If your vehicle is going to be smog legal, you will need to retain the original manifolds. Stock manifolds will work equally as well

on engine conversions; however, stock manifolds will sometimes create a clearance problem around the steering mechanism.

Most stock manifolds will require the exhaust system to be routed on the inside of the frame rails,

while most headers will carry the exhaust on the outside of the frame rails. We offer both fenderwell

& inside-the-frame rail headers.

When doing an engine swap, the exhaust system must be given consideration before finalizing

the exact engine location. If headers are going to be used, we highly recommend that you bolt the

new headers to the engine before determining the final engine location. If you don’t have the

headers on the engine while positioning the engine, there is a good chance the headers may not

fit properly.

The fenderwell headers that we manufacture are designed for a minimum amount of fenderwell

and firewall modifications. On square fender vehicles such as the CJ2A and round fender Jeeps,

the headers can be installed with only minor trimming of the lower fender skirting. These

modifications will vary depending upon the actual engine location. On this style of headers, the

driver's side header will go over the existing steering assembly on Jeeps up through 1975, and

an under the steering assembly on Jeeps 1976 & newer.

Jeeps equipped with the early style steering boxes that are mounted directly at the bottom of the steering column will find a definite

advantage using fenderwell headers over stock manifolds. Stock manifolds will require the engine to be located towards the

passenger side, while headers will permit the engine to be located towards the driver's side. This allows for additional front driveshaft

clearances around the Chevy starter motor.

When using headers on a new engine conversion, you will find that the headers do not offer the accessory mounting provisions that

are found on stock manifolds. It may be necessary to fabricate special brackets for the air conditioner, power steering, and alternator

supports.

The chrome headers we offer are not show quality, but are a commercial grade of chrome that will protect the headers from corrosion.

The availability of the chrome headers is becoming limited due to the availability of chrome plating facilities on the West Coast. The

alternative to chrome is a plain non-plated header set furnished to the customer for his own application of finish. The header can

be painted by the consumer using a special heat paint available in most auto parts stores.

STOCK MANIFOLDS:

If stock manifolds are being used on a Chevy small block, a rear dump, close-fitting manifold off of a 1982 & newer low performance

car is a good option. On vehicles that are smog exempt (depending on your vehicle year or state laws), the early Chevy ram horn

(centerdump) manifolds are great for most conversions.

Chevy V6 applications can use manifolds off of a 1978 Malibu Classic. For non-smog legal vehicles, manifolds off of a 1980 Monte

Carlo fit the best.