Right headers for a 67 pontiac

Asked by Oct 12, 2014 at 06:33 PM about the 1967 Pontiac Le Mans

Question type: Car Customization

I just bought a 1967 Pontiac Lemans from a neighbor that has Edelbrock performer RPM heads, Pontiac 400. My neighbor said he paid over $1000 for the headers (that are rusted now) . The headers that are on there now have an odd layout because of the clearance issue with the heads.

Cylinders 1 and 2 pipes go forward and under the cross member frame.
Cylinders 4, 6 3, and 5 are routed the normal way you would expect headers.
Cylinders 7 and 8 are routed into the wheel well then back to join the others.

Because 7 and 8 are routed Ridiculously through the wheel well most tires today (other than skinny 14") will hit the header pipes from cylinder 7 and 8.

My neighbor said he had these pipes made (9 years ago) beacuse of the Edelbrock head and the limited options.

Can anyone recommend an option for new headers?

4 Answers

1,535

My experience with big block SS 69's Camaro & Chevelleproved the bigger dia. tube headers aren't alwats better. 2"dia. Hooker headers on the Camaro & only 1 & 3/4" dia. on the Chevelle, but the Chevelle made more hp.! So some back pressure is better for scavaging (street). And on the drag strip with open exhaust through the collector only is a different story. Look for "chambered exhaust pipe" too they are like sausage crimped every 12" with a perforated baffle inside. Some co. are starting to make them again. High heat header paint them & clean prep them with lacquer thinner first AND hang them up & DONT touch them!!! You fingers have oil on them & will cause rust spots. If $$$ is in your budget have them Jet Hot Ceramic coated.

1,535

Oh & fender well headers for track,or no room. And or clearance problems with steering box or clutch linkage. Between the frame rail headers look cleaner & out of the way, (street). Beware hot fender well headers burn you & spark plug wires. Spark plug stays & separators or burn proof wires or braided sleeves are needed.

1,535

Have new custom headers made. It's not that difficult by an exhaust or speed shop with a tubing bender. Start with a pair of thick exhaust flanges.

1 of 1 people found this helpful.

James thanks for your replies. I think having them made would be the surest way of getting something that will fit.

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