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Old Feb 21, 2006 | 02:47 PM
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How upgradeable are the 4.8l(2004) ? Is it worth it ?
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Old Feb 21, 2006 | 03:29 PM
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In a truck? It's not the best motor to mod. I put an intake and exhaust and MAF on my Silverado, and I only ran dead even with a 5.3. If you want power, don't buy a truck, unless you get a Lightning or something.
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Old Feb 21, 2006 | 03:53 PM
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upgradable? yes worth it? take your pick. it cost the same money to modify a 4.8 a 5.3 or a 6.0 so most guy's will swap out a 4.8 and put a 6.0 in to upgrade. my advise dependng on money do all teh bolt on mod's because these bolt onto a 6.0 or a 5.3 then befor you start internal mod's get a 6.0 preferably. you can do head's and cam on a 4.8 and see nice gain's but they are much bigger gain's on a 6.0. als ohead's and cam can be put on the 4.8 then swapped onto a 6.0 later if you want to upgrade to a 6.0 also. I'm building a 6.0 for my truck right now and going to swap out the 4.8 for it. that's just what I'm planning though.
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Old Feb 21, 2006 | 04:46 PM
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I'm just trying to to decide what engine to put in my 67' Camaro. Its not going to be a daily driver so I'm thinking LS1,LQ9,LT1 . I now there is an abundance of LT1's for cheap, but on the other hand the 6.0l would be a monster, and the LS1(5.7)would be nice too, but I dont know if I want to deal with the wiring and all that in any of them, though the LT1 would not be that bad I don't think . I just want 400+rwhp and I know I can get it from a LT1 easily and cheaper thean the LS1 and LQ9. But if I can find them cheap I'll jump on them !
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Old Feb 21, 2006 | 09:11 PM
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there's carb conversions for the GenIII.
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Old Feb 21, 2006 | 09:17 PM
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I have a 4.8L 2001 Silverado. I had just about all the bolts ons and it still would get spanked by a stock 5.3
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