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8.1 in place of 5.3

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Old Jul 8, 2005 | 05:05 AM
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Default 8.1 in place of 5.3

Anybody done this change from a 5.3 to a 8.1 in the 99 and 1/2 ton trucks. I thinking about trying when mine goes bad, which I think its starting to. Getting blowby in the air cleaner. Or I can just put it back to stock (engine wise) and get the dealer to put a new motor in since I have the extended warranty. Any Ideas?
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Old Jul 8, 2005 | 12:18 PM
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DO IT!!!! If I had the mula I would consider it!!! Its something different!

Heres an example! This truck is just.....




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Old Jul 8, 2005 | 12:30 PM
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That looks nice. Definately hasn't been done much by people. I would have to sell alot of stuff to afford to do it.
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Old Jul 8, 2005 | 03:38 PM
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I was told that it should drop right in and you can use the wiring harnes and ecu that's in the truck now. You'll just have to retune it.
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Old Jul 8, 2005 | 03:50 PM
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Man, in that case I should start saving up!!!
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Old Jul 8, 2005 | 04:07 PM
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Making me think 8.1L instead of 6L damn decisions decisions need to fin d out if its just drop in I doubt it since the block is alot bigger but hey ya never know.
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Old Jul 8, 2005 | 04:14 PM
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thats what i was thinking, relocating motormounts, spacing, etc. bada$$ set up in that reg cab!
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Old Jul 8, 2005 | 05:04 PM
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DO It!!!!!!!! before i do...
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Old Jul 11, 2005 | 07:24 AM
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Anybody want to sponsor me, so I can do it? Just think, your name could be on my back window saying "Special thinks to Joe Blows wallet".
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Old Jul 11, 2005 | 12:33 PM
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Originally Posted by runin9s
DO IT!!!! If I had the mula I would consider it!!! Its something different!

Heres an example! This truck is just.....




If you read that article, that is definitely not a stock 5.3L truck, its a combination of parts from 1500's and 2500's.... here I posted that same article up on Parish's site a while back: http://www.neufamily.org/hosted%20stuff/hdss/
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