Found a motor home with a Mopar big block and I have some questions - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 25 (permalink) Old 06-01-2011, 09:47 AM Thread Starter
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Found a motor home with a Mopar big block and I have some questions

I was in a motor home in a salvage yard and found a Mopar big block under the engine cover. It looks great and is complete. However I know very little about this sort of thing. I am new to the world of Mopar. I am hoping to go out there today with the camera but in the mean time can anyone tell me anything about them. I think the Motor home is a 72 and it looks like it has a 727 behind the engine. Getting it out looks like it will be quite an under taking. Considering I just want to put this engine on a stand in hopes I will get a project vehicle later for it what would be a good price for it? How can I tell if it is a 440 or a 413? If it is a 413 what are the pros and cons of running it? If I get it, it will most likely go in a big truck build later on. I have always wanted a classic Dodge truck or SUV sitting tall with big block power and shining like a new penny.
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post #2 of 25 (permalink) Old 06-01-2011, 11:23 AM
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I don't know the answer to your questions, but I know where there's a fresh 440 with a fresh 727 in a motor home that you could have for fairly cheap.

PM me if you want details.

Wish I could help on the ID.

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post #3 of 25 (permalink) Old 06-01-2011, 04:46 PM Thread Starter
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I might be interested. I will get with you after I check this one out.
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post #4 of 25 (permalink) Old 06-01-2011, 07:06 PM
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post #5 of 25 (permalink) Old 06-01-2011, 08:15 PM
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It's going to be a low compression cast crank engine and the 727 (maybe an early 518 if somebody swapped it in) will be a 4-pinion planetary with the part throttle valve body. All good, especially if you build the engine for higher compression. The cast cranks can live around 500hp.

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post #6 of 25 (permalink) Old 06-01-2011, 08:18 PM Thread Starter
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Thanks man. I was hoping to get a Mopar big block for myself.
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post #7 of 25 (permalink) Old 06-01-2011, 08:19 PM Thread Starter
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Quote:
Originally Posted by Nadir View Post
It's going to be a low compression cast crank engine and the 727 (maybe an early 518 if somebody swapped it in) will be a 4-pinion planetary with the part throttle valve body. All good, especially if you build the engine for higher compression. The cast cranks can live around 500hp.
We posted at the same time. Do you think I can get 500 out of a 413 if that is what it turns out to be?
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post #8 of 25 (permalink) Old 06-01-2011, 08:30 PM
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It's not likely to be a 413 if it's a '72. The last 413s were installed sometime in the mid-60s.

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post #9 of 25 (permalink) Old 06-01-2011, 08:48 PM Thread Starter
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Even if I am wrong on the year, I am not that far off. Then this is not a 413. Hopefully it is a 440. I do not know much about them but I do know the aftermarket supports it.
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post #10 of 25 (permalink) Old 06-10-2011, 07:41 PM
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Look by in front of the left cylinder head. By the intake rail is a small square machined pad. The engine size will be stamped there.

If that is a class A motor home. Most likely a 413.

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It's going to be a low compression cast crank engine and the 727 (maybe an early 518 if somebody swapped it in
No way its a 518. Dodge never made the 518 for a big block engine. The 518 came out almost a decade after the big blocks went out of production.

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