1badsilverado

iTrader: (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?

Gran Patron

DO IT!!!! If I had the mula I would consider it!!! Its something different!

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

1badsilverado

iTrader: (3)

That looks nice. Definately hasn't been done much by people. I would have to sell alot of stuff to afford to do it.

TieRod

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.

Gran Patron

Man, in that case I should start saving up!!!

1slow01Z71

iTrader: (36)

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.

SIERRA ON FIRE

thats what i was thinking, relocating motormounts, spacing, etc. bada$$ set up in that reg cab!

LVSTOGOFST2002

iTrader: (3)

DO It!!!!!!!! before i do...

1badsilverado

iTrader: (3)

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".

duwem

iTrader: (1)

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/