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Old 05-15-2007, 05:13 PM   #15
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I recommend the 454...you can find parts & fuel at nearly every town in the USA. Nearly any town has a mechanic (or yourself) that can work on the Chevy powerplant too.
How many miles can one expect to put on the 454 engine?
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Old 05-15-2007, 06:10 PM   #16
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The 454 big block chevy engine can run forever. The cheapest preventative maintenance is changing the oil.
The enemy of any engine is heat. Keep the thing cool and life will go on.
The big block will also last a lot longer at lower rpm's.... so a Gear Vendors unit (under/overdrive) makes a lot of sense and is a desired option.
Regular exersize is also a key to long life...not just with human bodies but also with engines. Use it or loose it.
Keeping things tight and doing a good PM schedule will go a long way toward extending the life of the big block chevy.
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Old 05-15-2007, 06:11 PM   #17
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150000

About half of the diesel, or two lifetimes.
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Old 05-15-2007, 06:24 PM   #18
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I think it has been mentioned here and other RV sites that our 454 engines ususally need freshening up at just under 100,000 miles. I agree w/ Glencoombe with regard to regular exercise and a good PM schedule.
JMTCW -If you don't "drive it like you stole it" and do regular PM's on it, it should last well beyond 200+ Another great thing about the 454, is you can drop the pan and check the lower engine components to check for internal wear, and access the upper heads through the "dog house"
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Old 06-04-2007, 02:26 PM   #19
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Quote:
Originally Posted by zamboni
I think it has been mentioned here and other RV sites that our 454 engines ususally need freshening up at just under 100,000 miles. I agree w/ Glencoombe with regard to regular exercise and a good PM schedule.
JMTCW -If you don't "drive it like you stole it" and do regular PM's on it, it should last well beyond 200+ Another great thing about the 454, is you can drop the pan and check the lower engine components to check for internal wear, and access the upper heads through the "dog house"
what is meant by freshening up? do you mean doing the preventative maintenance?
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Old 06-10-2007, 09:37 PM   #20
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Diesel is definitely the way to go if you can afford it. Mileage is better, they last longer, and they tend to have more low end torque. FYI: the GM light truck powerplant of choice, the 6.6L Duramax, was designed by Isuzu, just in case you were hesitant to buy an Isuzu-powered coach.
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