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Old 04-20-2017, 07:45 AM   #10
PGSigns
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Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
Re: LS vs small block

The 5.3 with a set of headers and a good air cleaner will make well over 300 hp and and close to 375 pounds of torque that is there from the crack of the throttle that NO stock L31 with the same parts will come close to. I have the L31 with a cam and efi and my brother has an 02 truck with a 5.3 and just a cat back and he can out run and out tow me any day.
Jimmy
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