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Hey guys just wanted to say hi. I have a 99 silverado with 5.3 that has 191k miles on it. Im looking at trying to get some more power out of it cause it seems slower than normal 5.3s. I am thinking about doing LS1 heads, cam, and 90mm intake manifold. If you guys have any suggestions they would be greatly appreciated. Thanks
Justin
welcome to ls1truck!!
pending on if youre going new or used or stock heads and cam and whatever else i would think about going 6.0 L then later on add some power adders ;)
I was looking into the 6.0 swap but I read some where that you gas mileage drops drastically.
Quote:
Originally Posted by PhdNPrerunners
i look at it this way, it doesnt matter whatcha do rather it be 5.3 or 6.0 the more bolt ons you add the more the mileage hurts, then sometimes thats not even true, you'll be surprised at some of the MPG some people are getting with 6.0s.
my first post was if you were gonna spend that kinda money on heads blah blah blah, i would just go 6.0 even if its just stock, at lease you'll be that much further in the game.. even if you keep it stock you'll be better off.
Welcome fellow TEXAN.
welcome
welcome id recomend a motor swap with that high of mileage if even goin to a newer 5.3 hell theyre cheap
Welcome to the site!
You know the more I thought about this I realized you are right, a 6.0 conversion would be better than building up my high mileage 5.3. Right now I am getting 13-14 mpg so I doubt it will get worst gas mileage than that with a 6.0. So my next question would be is there only certain years 6.0 that I can put in my truck since it's a 99? Also where can I get a decent priced motor from? Thanks guysQuote:
Originally Posted by skeet
welcome to the site fellow houstonian. first off if your on this site forget about mpg.
Get a 2002 or newer, they should have a dished flywheel and the flywheel crank snout does not stick out 1/2" like the early models do.
Ok guys my 5.3 is starting to get really sluggish and I really want to do the 6.0 conversion soon but I have two questions. Where can I get a decently priced 6.0? Also will I be ok running my current 4l60e that was rebuilt about 4k miles ago till I get a 4l80e behind the motor? Thanks guys
Car-Part.com--Used Auto Parts Market
Welcome to the Site.
I was just in Your boat, But I had My 5.3 Bored out to a 5.7 havent seen or Driven it yet I am in Afgahnistan but I am from Houston. I had CTG do the Heads and Cam, and Rutland Trans Build My 4L60E with 4L65E PLennims and a Bad ass ATI Torque converter. So do You guys do get to geathers? or Meets? I would be down in May.
Welcome!
Check pms... and welcome!
welcome
Welcome