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i want to make 550 hp on 4l60e

da7ome

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da7ome New Member

da7ome

Posted
Posted

hi I have a 2009 GMC Sierra with a 5.3 L engine with 4l60e transmission with 4x4 and I want to make 550  horsepower how can I achieve that thnx

 

swathdiver Senior Enthusiast

swathdiver

Posted
Posted

Most of it through supercharging.  Dump the AFM from your LC9 and put in a nice cam, converter, headers and exhaust and that'll pretty much put you there, plus some kind of good air filter and of course a "tune".  Black Bear has some nice supercharger kits and they of course are excellent tuners.

swathdiver Senior Enthusiast

swathdiver

Posted
Posted

To live with that much horsepower it will certainly need to be rebuilt and "hardened".  I am ignorant at this time on that subject.

  • 1 month later...
NSSANE02 Enthusiast

NSSANE02

Posted
Posted

Best answer is switch to a 4L80. The 4l60 is weak, even a built one will have a hard time holding up to 500+hp. The cost of trying to build your transmission will likely be around the same as swapping to a 4L80 anyways.

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