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100 horse more at the wheel?

jwylde7

New Member
Joined
Aug 15, 2015
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8
Trying to figure out what would be the best brand and combo to make 100 more horse at the wheel? I have the 5.3 all stock at the moment.
 
That is a pretty tall order, it probably would require a transplant or at least new heads and cam. Maybe even a supercharger.
 
Probably the easiest and most reliable would be to do 6.2L/trans swap, they are 400 plus HP. Add a set of headers and tune, factor in a 30 percent drivetrain loss would put you at around 300 plus HP..

The stock 5.3L's are rated around 315 HP and usually dyno RWH out around 220 give or take a HP depending on the dyno..
 
Any of the name brand superchargers will get you there.  Magnacharger, Procharger, Vortech, etc.  Magnacharger gets you more down low, the Procharger and Vortech build power higher in the rpm range.
 
Be prepared strengthen the whole drivetrain (transmission, rear end, and the axles) if you go with a supercharger. I had to after I installed a magnacharger.
 
Randy said:
Probably the easiest and most reliable would be to do 6.2L/trans swap, they are 400 plus HP. Add a set of headers and tune, factor in a 30 percent drivetrain loss would put you at around 300 plus HP..

The stock 5.3L's are rated around 315 HP and usually dyno RWH out around 220 give or take a HP depending on the dyno..



That's why I suggested this route...
 
you still have factory axle and drive shaft.

I've gone through a few u-joints all stock.
 
You can get 100hp at the wheels easy if you have the money.

Do the flat top pistons from a 4.8, a 228r or equivalent cam, ported/polished 243/799 heads milled .025, with a cometic gasket with a compressed thickness of .030, adjustable timing set with -2 retarded timing, tbss intake with 50lb injectors from a 2013 flex fuel, with a 92mm throttlebody, or an LSXR truck intake with a 102mm TB, e-fans, long tube headers and a super-aggressive tune on 100 octane and you should be at about 370-390hp. Which is 100hp more than stock. But you'll have to do a 3500-4000rpm stall TC, shift kit, servo kit, trans cooler, and beef up the diff to take advantage of it. Or you could do a lot milder cam, like a 212/218 with all those mods and a 3000 stall TC with a turbo setup and far exceed 100hp.
 
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