08 gmc sierra v6

09-03-2011, 01:34 AM

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08 gmc sierra v6

i want to swap my 4.3l v6 to bigger v8 maybe heavy duty. what modifications will be needed?

09-03-2011, 08:59 AM

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Sell your truck and buy a v8 version...

09-03-2011, 09:05 AM

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yep, you'll be way ahead moneywise and no work.