jQuery not supported.



4.8 Mods

4.8 Mods

Postby Hoseman1553 [OP] » Nov 17 2010, 3:46am

For those of you with the 4.8, what have you guys bolted on for those extra horses/torque? And is there any particular vendor/site that you use regularly? I'm new to the silverado world switching over from a Pontiac so i'm trying to get my feet wet here.
2008 Chevy Silverado 1500 Crew Cab-stock
Original Poster
Hoseman1553
Firing on 1 cylinder [L1]
Firing on 1 cylinder [L1]
Posts: 14
Topics: 6
Images: 1
Joined: Oct 25 2010, 1:21am
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Spotsylvania, Virginia
Year: 2008
Make/Model: Chevrolet Silverado
Extra Info: 1500 Crew Cab 4.8L
Group Membership:
Registered users

Re: 4.8 Mods

Postby aksierra11 » Nov 19 2010, 4:15pm

How much are you looking to get out of the motor? Can always start with replacing the stock filter with a K&N or even getting a CAI. Do that with an exhaust and a tune and it will be a whole new truck. I either get parts locally or have used www.stylinconcepts.com quite a bit.
Image
User avatar
aksierra11
Combustion on 8 pistons [L2]
Combustion on 8 pistons [L2]
Posts: 882
Topics: 19
Images: 7
Joined: Nov 18 2010, 6:43am
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Wasilla
Year: 2011
Make/Model: GMC Sierra
Variant: VHO/Vortec Max
Extra Info: 6.2L SLT
Group Membership:
How-to Authors
Registered users

Re: 4.8 Mods

Postby Fraydknot » Nov 23 2010, 8:11pm

I installed the Nelson Performance tune and it is freakin great!!!! NelsonPerformance.com out of Texas.
It replaces your stock ECM/TCM (which will void your warranty), but for the life of you owning the vehicle all updates are free. As far as a CAI you will not get a MPG or horsepower difference unless your tune is set up for it. It will sound different, but if the computer is not looking for it it won't change your air fuel mixture.
User avatar
Fraydknot
Firing on 1 cylinder [L1]
Firing on 1 cylinder [L1]
Posts: 17
Topics: 2
Images: 1
Joined: Oct 25 2010, 8:43pm
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Orlando
Year: 2008
Make/Model: Chevrolet Silverado
Extra Info: 2WD Crew Cab
Group Membership:
Registered users

Re: 4.8 Mods

Postby aksierra11 » Nov 23 2010, 10:05pm

The stock ECU will notice if you add a CAI or exhaust and make changes they just wont be as drastic as if you have a custom tune set up for it.

I used Nelson on my previous truck and worked out well, still no substitute for having someone hands on tune it.
Image
User avatar
aksierra11
Combustion on 8 pistons [L2]
Combustion on 8 pistons [L2]
Posts: 882
Topics: 19
Images: 7
Joined: Nov 18 2010, 6:43am
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Wasilla
Year: 2011
Make/Model: GMC Sierra
Variant: VHO/Vortec Max
Extra Info: 6.2L SLT
Group Membership:
How-to Authors
Registered users

Re: 4.8 Mods

Postby badblacksierra » Nov 24 2012, 12:20am

Kinda reviving an old thread here but i have a vortec 4.8 , have a K&N CAI , MSD ignition , and exhaust work , what else can I do to make this thing be the best it can be, it has 400,000kms but still runs strong , and has babied its whole life , ive heard LS1 cam would be a nice upgrade but never really looked into it. would it be worth it , im planning on getting a tune done , but other than that , im an old school sbc gen III kinda guy , so i dont really know whats all available for these LS based engines , I know the LQ9 and LS1 have a boat load of things you can do to them , but what is everything you can do to these little 294 4.8's???? please help.....
badblacksierra
Newbie
Newbie
Posts: 5
Topics: 1
Images: 18
Joined: Dec 31 2011, 3:09am
Years of membership: 2 years of membership2 years of membership
Year: 2000
Make/Model: GMC Sierra
Extra Info: 1500 4.8L V8 RWD
Group Membership:
Registered users

Re: 4.8 Mods

Postby starspangled6.0 » Nov 24 2012, 12:23am

I think the best thing you could do for that engine would be to get it re-built, and then start upgrading the internals. A lot of Corvette parts will swap in without a problem to your engine. The reason I think you should re-build it is that with that many miles on it, you're asking for trouble once you start cranking out the power. Just my $0.02.
07 Silverado 3500HD 6.6L Crew Cab Dually
04 Silverado 2500HD 6.6L Extended Cab w\Hiniker 8.5 V
03 Sierra 2500HD 6.0L Extended Cab w\BOSS 8.2' V


http://www.integrityoutdoor.biz
User avatar
starspangled6.0
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 6280
Topics: 309
Images: 57
Joined: Nov 08 2010, 9:38pm
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Minnesota
Year: 2007
Make/Model: Chevrolet Silverado
Extra Info: 3500HD 6.6L Duramax
Group Membership:
Registered users

Re: 4.8 Mods

Postby badblacksierra » Nov 24 2012, 12:27am

oh im planning on rebuilding the motor this winter as i have my baby completely in pieces as we speak , im wonder what is a list of things i can do , and what i will have to watch out for if i decide to go that route , what corvette parts work????
badblacksierra
Newbie
Newbie
Posts: 5
Topics: 1
Images: 18
Joined: Dec 31 2011, 3:09am
Years of membership: 2 years of membership2 years of membership
Year: 2000
Make/Model: GMC Sierra
Extra Info: 1500 4.8L V8 RWD
Group Membership:
Registered users

Re: 4.8 Mods

Postby starspangled6.0 » Nov 24 2012, 12:59am

I'm not a engine rebuilding expert :oops:, but I have talked to Comp Cams in the past. You can ask them what to upgrade\replace, and what Corvette parts are interchangeable.
07 Silverado 3500HD 6.6L Crew Cab Dually
04 Silverado 2500HD 6.6L Extended Cab w\Hiniker 8.5 V
03 Sierra 2500HD 6.0L Extended Cab w\BOSS 8.2' V


http://www.integrityoutdoor.biz
User avatar
starspangled6.0
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 6280
Topics: 309
Images: 57
Joined: Nov 08 2010, 9:38pm
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: Minnesota
Year: 2007
Make/Model: Chevrolet Silverado
Extra Info: 3500HD 6.6L Duramax
Group Membership:
Registered users

Return to Vortec 4800 4.8L V8

 

  • Similar topics
    Replies
    Views
    Last post

Common search terms

stock mods getting thing make engine still work done miles think used guys installed nice great problem help

It is currently Dec 20 2014, 9:08pm

  • Sponsor
Login  •  Register
SHOP TALK (Live Chat)
Vortec 4800 4.8L V8 Forum
Vortec 4800 4.8L V8 specific.
To create a new topic in Vortec 4800 4.8L V8, click this button:
Previous topic Next topic
Sitewide News Sitemaps & Feeds

Who is online

Users browsing this forum: No registered users and 5 guests