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Old 07-04-2003, 02:41 PM
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Post Turbo kit for AMC 258 In 6


Is anyone here know turbo kit for AMC 258 engine ?

I own 1982 Jeep CJ-7 and I have been interested in turbo system to get additional power.

Your reply would appreciated. Thank you.



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Old 07-04-2003, 09:30 PM
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Old 07-03-2009, 11:25 AM
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I need the same type of turbo for my 258, but it's in going in a Pacer

Hi All: Great Minds Think Alike... JUST bought a restored Pacer. Thinking of installing a turbo. Would be great to find a set up so I don't have to reinvent the Wheel.... Pls advise, anyone.
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Old 07-03-2009, 12:19 PM
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post is a few years old... but it has been done.. no kits for the 258 directly but.. there are kits for 4.0L Jeeps around and you could run a 4.0L head if you want a bolt on kit
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Old 07-03-2009, 01:56 PM
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Don't know if it's still wanted, but I'd check with Clifford Research, or Four Wheel Drive Hardware. Either should be able to give you some input.
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Old 07-09-2009, 10:53 AM
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Some of the 4.0L kits would work. They mount the turbo on the passenger side of the engine, running a pipe under the oil pan to the turbo. You would just need a new head pipe bent, or modify the one that comes with the kit. There would be the additional problem of attaching to the carburetor, the kits use the stock 4.0L air intake tube and throttle body "cap". Here's one that a guy made himself on a 71 258. He pulled the engine when the original trans finally needed rebuilding (a Borg Warner auto). Wanted even more power, and with the trans going, decided he'd try a V-8. 71 and earlier AMC sixes use a different bell housing bolt pattern than 72+, so he had no easy option for a trans upgrade.

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Old 08-17-2009, 03:33 PM
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I have a turbo set up on a 258....

I've got a "draw-thru" turbo set up on my 73 CJ-5 with a 258. I didn't install it, I purchaced it this way. It's a turbo set-up off a 79' or 80' Buick Type-T or Grand National. The owner before me rebuilt the engine and at the time he replaced the original carb with an Edelbrock 600 carb on it. It runs but detonates at highway speeds. It seems to have plenty of torque. I've since learned there is a difference between a turbo ready carb and non-turbo carb. I've found an original rebuilt quadra-jet carb from a 79 turbo that should correct these detonation issues. Just never installed the carb yet to see for sure (I'm working on the jeep and have not installed the new gas tank and lines yet to get it running again). I would prefer to go back to regular induction. I would be willing to sell the complete set-up to anyone SERIOUSLY interested. I plan on driving this jeep a lot and would feel more comfortable with a conventional set-up. Feel free to email me with any questions.

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