Chevy Astro Diesel Conversion - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 01-09-2011, 09:40 PM Thread Starter
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Chevy Astro Diesel Conversion

Looking for any ideas on a Chevy Astro Diesel conversion. I was thinking maybe a Isuzu BD1T engine because the Astro can take a 350 with some modification.

-Bill
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post #2 of 9 (permalink) Old 01-17-2011, 10:23 AM
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If I remember correctly the astros came with a 4.3l gas as one of the enging options. chevy also made a 4.3l diesel that ought to fit right in. I had a 1984 chevy celibrity with one of these engines in it. hope this helps!
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post #3 of 9 (permalink) Old 01-18-2011, 03:32 AM
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I have not heard of this engine in an Astro but it would make one awsome van (4bd1t that is) oil pan clearance and some of the intake and exhaust routing may be a difficult task. measure it up

the gm 4.3 is not even worth thinking about. may have been better than its v8 brother but thats no saying much.
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post #4 of 9 (permalink) Old 01-18-2011, 09:35 AM
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well, I agree that these gm diesels from this time was not worth much , but in this case it was the rest of the car that gave me problems. I actually got rid of it because the transmission started to slip.
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post #5 of 9 (permalink) Old 01-19-2011, 05:22 AM Thread Starter
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Is the 4.3 diesel a sleeved gas engine like to ones that were in the caddys?

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post #6 of 9 (permalink) Old 01-20-2011, 02:18 PM
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I don't think so, but I never had one apart nor have I actually examined a 4.3l gas to compare it to The reason that I think that it is a diesel block is how the injection pump drive was routed. If I remember it correctly, it ran on a slight an angle threw the block.
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post #7 of 9 (permalink) Old 01-20-2011, 10:41 PM Thread Starter
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I dont know why I was thinking caddy It was in the olds toranado. From my experience with this engine I think I'll try to research the Isuzu engine.

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post #8 of 9 (permalink) Old 01-28-2011, 07:49 PM
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There was one swapped and for sale on:

www.Astrosafari.com


Doghouse mods to the passenger side was needed.The guy was driving it and thought a rear end gear swap would work better than the stock 3.42's that as in there.

Another diesel swap was done on a Astro for the 6.5 and that thread is on:

www.Astrosafarivans.com

He too is driving it and has reported 20 to 22 mpg.These vans are heavy(4,000lbs or more)and do benefit from the torque.He said he is going this spring put a down stream turbo on it.The engine compartment is too tight for the turbo.He is using a 4L60E tranny.The thing is V8 swaps are common on the Astro vans,so that does make a swap of 6.5's more doable.The but is the pitfalls that are in the design of 6.5's.Creaks in the main bearing webs and fuel pump issues.
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post #9 of 9 (permalink) Old 03-24-2011, 12:33 AM Thread Starter
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Thanks for the info. The link that you provided has a lot of info on the Astro. I have a 6.5L and if you take extra care with them like relocating the PMD to behind the bumper, maybe add some 2 cycle oil to the tank and definitely not letting the temp get anywhere near the red on the temp gauge. They do ok, I'm a GM man but I think Ford and Dodge definitely have a much better diesel product.
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