4.8 l v8
02-04-2007, 11:34 PM
#1
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4.8 l v8
just got a 2003 silverado with a 4.8 l in it. was wondering if anyone knew of things to do to it not involving super charger or nitrous to up the horse power major. i heard you can put an ls6 intake man. on it. is this true. what kind of cam kit should i get for it. any help would be cool. nate
02-05-2007, 01:45 AM
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slow
Originally Posted by Justin00SS
Yeah. This truck is ******* slow! lol
-justin
-justin
02-05-2007, 04:54 AM
#4
Originally Posted by nathancalifornia
its not an ls1, thats for sure.
Basically in so many words, don't bother with the 4.8. There are guys with great results running turbo's on the 4.8's but that's a ton of work tuning it.
The cheapest way is just do an engine swap. Sounds like a lot of work, but it's a 1 day affair.
You can do a 6.0 swap for under $1500 if you look around. All the accessories will swap over as well and everything will bolt up without needing adapters.
02-05-2007, 08:16 AM
#5
Originally Posted by RandomHero
Um yea it is....well sorta. It's an lsX based engine.
Basically in so many words, don't bother with the 4.8. There are guys with great results running turbo's on the 4.8's but that's a ton of work tuning it.
The cheapest way is just do an engine swap. Sounds like a lot of work, but it's a 1 day affair.
You can do a 6.0 swap for under $1500 if you look around. All the accessories will swap over as well and everything will bolt up without needing adapters.
Basically in so many words, don't bother with the 4.8. There are guys with great results running turbo's on the 4.8's but that's a ton of work tuning it.
The cheapest way is just do an engine swap. Sounds like a lot of work, but it's a 1 day affair.
You can do a 6.0 swap for under $1500 if you look around. All the accessories will swap over as well and everything will bolt up without needing adapters.
ALL TRUE!!! 6.0 time
02-05-2007, 02:54 PM
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I have the same setup, except I bought it new in 2003. I agree with most posters here. If you don't want to go FI, then a 6.0L would be the best choice. I went the Radix route and am pleased with it, but if my truck were to disappear, I would give serious thought to going the 6.0L route for its replacement. The only fly in the ointment could be: Although you say you are currently in Hawaii and are from Tennessee, I can't help noticing the "California" in your name. Correct me if I'm wrong but I believe CA disallows the installation of engines larger than what was available from the factory for that particular year, make and model. Apparently they do not currently check but they may some day in the future. However, you can get Radix, Whipple and I think STS setups that are officially CARB approved. Again it may not be a problem, just something to think about.
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02-05-2007, 04:42 PM
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If ya want a lil more squeeze from it do a cam tr220 or 224, full exhaust, 2600-3k stall, custom tuning, 410,s shift kit, intake, pulley's, if ya feel good do a set of heads or have yours worked. Or just say screw all that bs, get a 6.0 and be just as fast with the stock 6.0 as a built 4.8. Thats what i did. Also save up for for a tranny cause it will leave with a beefed 4.8 or the 6.0.
John
John