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Discussion Starter · #1 ·
It appears that one exhaust port of my header is crushed better than half way, and I have an exhaust leak from it, as well as probably the exhaust manifold from when the header was jammed upwards.

Does anyone have a header for sale? As well as any advice?
 

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Opel fan
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I see headers for sale on ebay frequently, however I hear the sprint manifolds are better than most headers. BTW, what does the phrase on your signaure and under your icon mean?
 

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Discussion Starter · #3 ·
Header

So the Sprint manifold would replace the current manifold, then the replaced two-into-one header pipe would bolt onto that ok?

"Air Muir ‘s Air Tir!" -Scots Gaelic for the latin crest, "Per Mare Per Terras,"-by Sea by Land.

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"Gabh eolas Rubh’ a’ Bhaird air..." Gàidhlig gu Beurla, lit.-"Take it like the Bard's advice." ie-Take what I offer, only for what it's worth to you.
 

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Opel fan
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The sprint manifold is a stock exhaust manifold, I believe it was on the 74 and up fuel injected engines. It looks like a regular manifold but doesn't have the heat riser/box that sits under and bolts to the carb. Do a search on the site here and you'll get tons of info about it. If you did a sprint manifold you'd have to get a new pipe from the manifold to the muffler because the sprint manifold isn't near as long as most headers I've seen for the Opel. It has a few advantages over a steel header. It lasts very long being cast iron, the flange where it bolts onto the head is the same thickness as the flange on the stock intake manifold, it flows as well or better than some of the headers out there. Also, the thing that has you looking for a new header, the low clearance from the pavement because of the collecter, is not an issue. I'm no expert, this is just what I have gathered from the info here and what motivated me to get one. Someday, I'll put it on. :) HTH
 

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Discussion Starter · #7 ·
Thanks everyone for all the offers and help! I would have never guessed there were this many cool folks in one place.

I think I'll give the 4-into-1 header a try. What additionals do I need? I'm assuming new pipe to the muffler, amongst other things.

Oh yeah, had it clocked yesterday. It ran 5 mph fast at 45. Progressively reading faster than it was actually travelling with speed increase. New 14" rims with a little taller tire fixed that. It had 13" 3-piece with low-profile tires. This had it about 2 inches lower than it now is. Ride is MUCH BETTER. Handling is markedly improved. Hopefully no more crushed pipes. Now...must...get...sway bars!

My wife is already looking at me with one eyebrow cocked. I think she's a bit jealous.


Scott
 

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Jim Branham said:
The sprint manifold is a stock exhaust manifold, I believe it was on the 74 and up fuel injected engines. It looks like a regular manifold but doesn't have the heat riser/box that sits under and bolts to the carb. Do a search on the site here and you'll get tons of info about it. If you did a sprint manifold you'd have to get a new pipe from the manifold to the muffler because the sprint manifold isn't near as long as most headers I've seen for the Opel. It has a few advantages over a steel header. It lasts very long being cast iron, the flange where it bolts onto the head is the same thickness as the flange on the stock intake manifold, it flows as well or better than some of the headers out there. Also, the thing that has you looking for a new header, the low clearance from the pavement because of the collecter, is not an issue. I'm no expert, this is just what I have gathered from the info here and what motivated me to get one. Someday, I'll put it on. :) HTH
Actually, ONLY the '75 models had FI and the Sprint manifold here in the US. All the "commercial" headers for the CIH engines sold here had "flange thickness" problems and, since they were not "equal length" design, don't really perform any better than a Sprint with 2" exhaust back from the downpipes "Y" junction.
 
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