Best mods for 5.3, high budget...
Thread Starter
Teching In
Joined: Feb 2017
Posts: 16
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Best mods for 5.3, high budget... how's it going, new to the site and to ls engines ingeneral. just looking for some adviceand thoughts on my first rebuild of my 5.3 lm7. I know there is tons of info onthis, but am mainly looking for tips and whatnot on my specific set-up androute I am wanting to go with it. I dohave a budget, don't really want to spend over 6,500 on this. so this is what I'd like to do.
A TSP cam pkg w/ springs and rods
TSP lt headers- 1 3/4
fast 102mm in take
nick williams 102mm tb
33lb injectors
4.8l flat top pistons
4l80e trans with a 40k transcooler
getting my stock heads ported
and of course a tune afterwards
I guess that's about it... isthere is anything I should add or change?
Are the brand of parts a goodfit? or are there better alternatives?
any feedback would be greatly appreciated.thanks a lot, love this site
A TSP cam pkg w/ springs and rods
TSP lt headers- 1 3/4
fast 102mm in take
nick williams 102mm tb
33lb injectors
4.8l flat top pistons
4l80e trans with a 40k transcooler
getting my stock heads ported
and of course a tune afterwards
I guess that's about it... isthere is anything I should add or change?
Are the brand of parts a goodfit? or are there better alternatives?
any feedback would be greatly appreciated.thanks a lot, love this site
Last edited by RAYRAY175; Feb 10, 2017 at 01:12 PM.
Thread Starter
Teching In
Joined: Feb 2017
Posts: 16
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what would you suggest then?
it is going in my 2000 sierra rcsb 2wd
my goals, well to get the most out of my budget, whatever that may be. I have contemplated an ls3 as well but would still need the bigger trans, converter and all that so just figured I could get the most hp out of those mods.
it is going in my 2000 sierra rcsb 2wd
my goals, well to get the most out of my budget, whatever that may be. I have contemplated an ls3 as well but would still need the bigger trans, converter and all that so just figured I could get the most hp out of those mods.
Restricted User
Joined: Mar 2014
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From: Ohio
For reference, I'm in the market for a RCSB 99-02 2wd Silverado/Sierra, exactly what you have. For $2500, I plan on doubling the stock horsepower through the stock exhaust and stock cam. Then trading up for a newer/nicer truck or cash, and starting all over until I eventually have a brand new truck lol.
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Teching In
Joined: Feb 2017
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also very curious about the proper cam for a build like this. should a 224 on 112 lsa work or should I switch that up. thanks again for helpin me out. trying to jump in and yall really seem to know a good bit.
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
You can do heads, cam, headers, FAST intake, pistons, aftermarket injectors, ported heads, etc.. and make 200 HP less than my 100% factory bone stock 4.8 does with a $1500 turbo setup. mine will idle, cruise and drive nicer.
If you really want to dump that much money in a 5.3, have at it. If you had a $1500-$2000 budget I would just tell you PRC heads, Speed Engineering headers, Cam/springs and a tune. Since it looks like you actually have some money to spend, be smart about it.
If you really want to dump that much money in a 5.3, have at it. If you had a $1500-$2000 budget I would just tell you PRC heads, Speed Engineering headers, Cam/springs and a tune. Since it looks like you actually have some money to spend, be smart about it.
Thread Starter
Teching In
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I thought about different heads but have done quite a bit of reading that says the heads on it once ported flow really well so I put that money else where. with all those parts up there I'm at 4400. that seems a good deal since motor has 250k on it and needs a rebuild anyway. ill put the rest in suspension and all that. IF that is the best ill be able to get out of the engine with those parts. if I had more money I would like to throw a 6.2 in it
Launching!
Joined: Oct 2010
Posts: 227
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From: Houston, TX
another option would be not to go fast intake and just do a nnbs/tbss intake maybe have it ported. spend the money on some ported heads.
http://peakspeedshop.com/Zen_Cart/in...58a144c8a7987d
getting new rods would be smart as the ones in a stock 2000 5.3l aren't as strong as the newer ones.
http://peakspeedshop.com/Zen_Cart/in...58a144c8a7987d
getting new rods would be smart as the ones in a stock 2000 5.3l aren't as strong as the newer ones.
Launching!
Joined: Oct 2010
Posts: 227
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From: Houston, TX
no its a stock intake that is on the 07+ trucks or the trailblaser ss. they cut it open to port it to get a little more flow and glue it all back together. might not me as high flowing as the fast 102 but would keep some lower torque and be cheaper doing it then the fast to have money to spend else where. also did fast fix the fitment issues they use to have where they were a pain to get a good seal?
