Upgrades for 5.3 Vortec? - Page 2 - Chevelle Tech
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post #16 of 16 (permalink) Old Jan 25th, 16, 1:46 PM Thread Starter
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Jorge
 
Join Date: Oct 2015
Location: San Diego / LA
Posts: 60
Re: Upgrades for 5.3 Vortec?

Quote:
Originally Posted by Andy's Auto Repair View Post
My 07 Tahoe was the town bike until last year when an LS2 6.0 fell into my lap, so I swapped the 5.3. Before that, everyone who drove it was amazed how fast it is, even with the original 3.55s in the rear. Mods to it were simple. Cold air kit, OBX headers, and a very good tune. It actually made 298 RWHP in a 4500 pound SUV. Doesn't sound like a ton, but the thing made over 350 pound of torque at 2200 all the way to 5500. Good, useable, non peaky power.

Point? I wouldn't touch that 03 of yours besides a good intake, a decent set of headers, and a good tune. I am about to lose the carb on the 6.0 in my 94 Jeep. Parted out an 02 CamaroSS. Put the engine in an 04 Corvette. Kept the intake, computer, and accessories. The Camaro 5.7 is on the ground.
Thanks Andy. I'm leaning towards this option! Should I at least replace the lifters and injectors before dropping this in?
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