jQuery not supported.



2003 5.3 best performance upgrades

2003 5.3 best performance upgrades

Postby Trod [OP] » Nov 16 2012, 1:26pm

I've got a 03 ecsb 5.3 z71 4x4 need ideas of best performance upgrades I can do I already have a cai (vararam cold air ram intake) and a ppe GS tuner which I know I need to get something better any input would be appreciated I need more hp/tq it's a little sluggish when pulling my rock crawler around 7k on the trailer
Original Poster
User avatar
Trod
Firing on 2 cylinders [L1]
Firing on 2 cylinders [L1]
Posts: 23
Topics: 2
Blogs: 0
Joined: Nov 15 2012, 2:33pm
Years of membership: 1 year of membership
Location: Clark co ky
Year: 1988
Make/Model: Chevrolet Silverado
Extra Info: 2003 5.3 lm7 z71 4x4
Group Membership:
Registered users
Related Topics  2003 ls 5.3 with nv3500 2003   5.3 upgrades   2011 silverado 5.3 upgrades   Performance upgrade 4.3/6   poor performance for a 5.3   performance places in VA?   Performance Mods? What to get?   Performance Mods. WHAT TO GET?   Performance for $500   Performance Tuning   83 Chevy performance   Which performance chip to purchase   06 silverado performance mods...   What's the best CAI intake for performance? 
Vortec 5300 5.3L V8 Sponsor
Advertise Here

Re: 2003 5.3 best performance upgrades

Postby allterrainjoe » Nov 16 2012, 1:36pm

The new tuner sounds like a good plan...
Image
User avatar
allterrainjoe
Staff Member
Staff Member
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 2161
Topics: 95
Images: 103
Blogs: 4
Joined: Dec 11 2011, 4:59pm
Years of membership: 2 years of membership2 years of membership
Location: Ontario Canada
Year: 2011
Make/Model: GMC Sierra
Extra Info: all terrain z71 slt
Group Membership:
TOTM Winner
Global moderators
Registered users

2003 5.3 best performance upgrades

Postby Trod [OP] » Nov 22 2012, 7:09am

Anyone else?
Original Poster
User avatar
Trod
Firing on 2 cylinders [L1]
Firing on 2 cylinders [L1]
Posts: 23
Topics: 2
Blogs: 0
Joined: Nov 15 2012, 2:33pm
Years of membership: 1 year of membership
Location: Clark co ky
Year: 1988
Make/Model: Chevrolet Silverado
Extra Info: 2003 5.3 lm7 z71 4x4
Group Membership:
Registered users

Re: 2003 5.3 best performance upgrades

Postby tcnoakes » Nov 22 2012, 8:37am

Check out performancetruck.net

Id say a cam, rockers, push rods, and lifters. Then a custom tune. That would get you 50-75 HP. Apparently this job isnt too bad on those trucks, I almost pulled the trigger on this project on my 06. There is a youtube video on the whole process if I remember right.
Image
User avatar
tcnoakes
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 2074
Topics: 43
Images: 59
Blogs: 0
Joined: Sep 27 2012, 7:28am
Years of membership: 1 year of membership
Year: 2012
Make/Model: Chevrolet Silverado
Group Membership:
TOTM Winner
Registered users

2003 5.3 best performance upgrades

Postby Trod [OP] » Nov 22 2012, 10:33am

Thanks for the info I'm trying to learn all I can to better my truck and it's ability
Original Poster
User avatar
Trod
Firing on 2 cylinders [L1]
Firing on 2 cylinders [L1]
Posts: 23
Topics: 2
Blogs: 0
Joined: Nov 15 2012, 2:33pm
Years of membership: 1 year of membership
Location: Clark co ky
Year: 1988
Make/Model: Chevrolet Silverado
Extra Info: 2003 5.3 lm7 z71 4x4
Group Membership:
Registered users

Re: 2003 5.3 best performance upgrades

Postby camfire87 » Dec 05 2012, 12:04am

It depends on how far into it you're looking to go. Do you just want bolt on power? or are you willing to swap out internals? If pulling power is the only real issue then you might also consider re-gearing.
Image

2" levelling kit
Stampede flares
Eagle Alloy rims with 275/70/18 General Grabber AT's
User avatar
camfire87
Combustion on 4 pistons [L2]
Combustion on 4 pistons [L2]
Posts: 450
Topics: 13
Images: 41
Blogs: 5
Joined: Jan 29 2012, 12:27am
Years of membership: 2 years of membership2 years of membership
Location: Calgary, AB
Year: 2012
Make/Model: Chevrolet Silverado
Extra Info: 1500 Z71 5.3l 4x4
Group Membership:
Registered users

2003 5.3 best performance upgrades

Postby Trod [OP] » Dec 06 2012, 12:04pm

I've got 3.73 gears right now I have thought of goin to 4.10 eventually just have to get the chevota project done first. I have thought of swapping internals. What would be a good torque cam? Which company is best comp,tsp,Vinci,voodoo,lunati, etc which springs an rockers/pushrods
Original Poster
User avatar
Trod
Firing on 2 cylinders [L1]
Firing on 2 cylinders [L1]
Posts: 23
Topics: 2
Blogs: 0
Joined: Nov 15 2012, 2:33pm
Years of membership: 1 year of membership
Location: Clark co ky
Year: 1988
Make/Model: Chevrolet Silverado
Extra Info: 2003 5.3 lm7 z71 4x4
Group Membership:
Registered users

Re: 2003 5.3 best performance upgrades

Postby bigwhite11 » Dec 11 2012, 10:29pm

If you really want to do something you can feel the difference immediately, do electric fans! One of the best mods to a pre 2005 5.3. Just my .02
bigwhite11
Newbie
Newbie
Posts: 5
Blogs: 0
Joined: Dec 03 2012, 4:50pm
Years of membership: 1 year of membership
Location: Carlyle Illinois
Year: 2010
Make/Model: Chevrolet Silverado
Group Membership:
Registered users

Return to Vortec 5300 5.3L V8

 

  • Similar topics
    Replies
    Views
    Last post

Common search terms

right performance upgrades already tune info intake difference cold trying sounds mods might trucks first thanks anyone done issue power check thought

It is currently Sep 02 2014, 10:08am

  • Sponsor
Login  •  Register
SHOP TALK (Live Chat)
Vortec 5300 5.3L V8 Forum
Vortec 5300 5.3L V8 specific.
To create a new topic in Vortec 5300 5.3L V8, click this button:
Previous topic Next topic
Sitewide News Sitemaps & Feeds

Who is online

Users browsing this forum: No registered users and 4 guests