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Old 08-04-2010, 09:17 PM   #15
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350 vs 454

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Originally Posted by Mike Leary View Post
I've never heard any good stories about the 454, other than you can cook your dinner real quick on those red hot exhaust manifolds.
You can count me as one with a good experience with the 7400 VORTEC 454 V8. I special ordered my '99 K 2500 in February 1998 and took delivery on April 21, 1998. In the intervening 12 years and 199,000 miles, the motor has been trouble free - - and despite the long-lived legend of high oil consumption, it has been rare for me to need to add oil between my 3,000 mile changes. If only the transfer case were half as good as the 454. . . .

Kevin
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Kevin D. Allen
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1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)
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Old 08-25-2010, 03:00 PM   #16
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350 vs 454, from an '89 Suburban 350 Owner

I just finished my first ever holiday towing a 4000 lb. 22' 1965 Safari behind my '89 Suburban 3/4 Ton 4x4 with a TBI 350 and I can certainly state; not enough power.
Am now considering stroking to a 383 (and welcome opinions on this) or just look for a new (well, newer) truck but I will miss this one; it came before the A/S.
While some may say "the 4x4 adds weight", well sure, but even if it was a 2WD it would not tow your 27" A/S to anybody's satisfaction.
And a lot of people have warned me off the 454 due to fuel consumption.
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Old 08-25-2010, 05:24 PM   #17
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BIG difference between a 350 and a 454.
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Old 08-25-2010, 09:50 PM   #18
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Rob,

I have a 1995 GMC K2500 4wd with the 350 and the 4L80E trans. The truck has 215,000 and runs like a clock. However, I am currently towing only a 19ft Komfort and I am glad I have the 4.10 rear end. I only run 60 on the highway. From my experience I think you may disappointed in the way it handles the 26ft trailer you have especially if you are pulling any mountain grades. It is a very reliable combo. especially the 4L80 trans, but if I ever go to a bigger coach, I will look for more pulling power. Just my two cents worth.

Tim
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Old 08-25-2010, 10:56 PM   #19
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With a 350 you will need a high numerical axle ratio. My guess is 3.37 or higher #.

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Old 08-25-2010, 11:02 PM   #20
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1994 Suburban C1500 with 3.73 axle ratio, automatic, engine & tranny cooler, tow package Z82 and WD hitch is rated for 6500 # conventional trailer. (This assumes everything is in good condition)

How much does your Overlander weigh? Mine weighs close to 6K
And you have to have the 3.73 axle ratio. Any less and it will be a dog.

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Old 08-26-2010, 06:24 AM   #21
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Thanks

Thanks, all. I bought the 350, made sure it had the right rear end and towed my Overlander across the Rockies and Coast Mountains (Cascades) out to the coast and back again. No problems to speak of and we had a great trip. There was less power than the 454, no doubt, but the roads we choose mean we can take it a little slower.
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