Headers?

[04 Diesel]

I found a set of headers fir my 76 w100, are they worth it? What will I gain?I can get them for 30 bucks, will i have to get a smaller starter? What else will i have to do?

[Ron in Indiana]

First are you sure they are for your truck? I put a set on my 78 with no problem as far as the starter goes. You may have to take that side off to replace the starter if it goes bad. I believe yours has a poly gas tank like mine and the 75 I have here. new exhaust pipe will need to be run with both pipes and mufflers run down the passenger side of the truck. I knew a guy who ran his pipes straight back towards the gas tank and melted a hole in it. It's a wonder he didn't burn it to the ground being the moron he was. Anyway a trip to a good muffler shop will get you going. I had mine run to behind the rear tire side by side. As far any difference in power or mileage I can't say. Just be sure you level the flange that bolts to the block with a belt sander. It helps in keeping down the leaks oh and get good header bolts. Expect to tighten them after a good hot run and cool down. The end bolts are studs with nuts. Remove them and watch the antifreeze run out. Use the nuts leave the studs

[Gordon Maney]

My concern about headers is that they rust out and develop cracks. A cast iron manifold tends to be more durable.

[04 Diesel]

Headers are a no go, the guy already sold them. Thanks.