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Diesel Conversions Convert gas to diesel, or convert to a 6.2/6.5/Duramax/Cummins/Navistar/Isuzu/Perkins/Detroit/or ... diesel engine. Go here to see completed projects, works in progress, share your conversion or ask the experts.

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  #1  
Old 06-16-2008, 08:52 PM
Roadking41a Roadking41a is offline
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Default 86 Chevy Caprice wagon

I have a 86 Caprice wagon. I wanted to know how hard would it be to convert from a gas engine to a diesel and what do I need to convert it over?

Right now I have a factory Olds 307 with 200 4 R trans with a 3.08 rear.
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Old 06-17-2008, 09:24 AM
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trbankii trbankii is offline
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Might want to look at these threads:

http://www.thedieselpageforums.com/t...ad.php?t=31829

http://www.thedieselpageforums.com/t...ad.php?t=27921
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Old 06-17-2008, 01:51 PM
Roadking41a Roadking41a is offline
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Is the 6.2 diesel that GM put in their light duty trucks? Or is it a early Duramax? Never mind I just answered my own questions.
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Old 06-17-2008, 04:15 PM
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6.2, which was the precursor to the 6.5 engine.

The Duramax is an entirely different animal.
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Old 06-19-2008, 11:48 AM
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Is this a direct bolt in or is the a few mods that I will have to do?
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Old 06-19-2008, 12:35 PM
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Definitely a "make it work as you have to" project. Even transplanting a diesel into a vehicle that had the diesel as an option takes a certain amount of work. Transplanting it into a vehicle that never had it as an option requires a certain amount of customization to make it work.

You have a certain advantage in that the 6.2/6.5 has certain similarities to the GM gasser engines when it comes to bolt patterns and such - just because the trucks and Suburbans/Blazers came with both gas and diesel engines.
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Old 06-19-2008, 06:20 PM
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Being new to diesels,can I get a Crate 6.2 GM diesel?
Also will I need a ecm for this engine?
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Old 06-20-2008, 05:08 AM
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6.2 was mechanical injection. Early 6.5s were mechanical, but then went to electronic with an ECM. Chances are you aren't going to find a crate 6.2 as they haven't been used since '92.

Penninsular Diesel offers crate 6.5s: http://www.peninsularengine.com/index.html

Since you are converting a vehicle that didn't have a diesel to start with, the best course of action would be to buy a complete donor vehicle so that you can get all the associated parts. Otherwise you're going to be buying every little item separately.
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Old 06-25-2008, 07:22 PM
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i'm interested myself
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