5.7 vs 6.0 swap towing

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rangokatt

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Phoenix az
I have a 1988 one ton the stock transmission is the turbo 400. I currently live in az and plan on moving to south Georgia would it be better to swap a 6.0 into it or leave the 5.7 I plan on towing a Lexus ls430 to Georgia with me
 

HotWheelsBurban

Gotta have 4 doors..... Rawhide, TOTY 2023!
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All the trucks we've towed with, except for the '06 Denali (6.0 AWD) were 5.7 powered. Mostly stock engines too. The '81 GMC Sierra was a 305 and we hauled 17 cars on a borrowed car hauler trailer over 4 days. Those cars included a 66 Riviera other fullsize cars. The '90 R2500 Burb hauled Uhaul trailers and a car hauler with a big block 25 series square body Burb on it. Our '78 Sierra towed a 23' travel trailer, a heavy one from the 70s, with no problem to DFW and back, and its only mods were headers and dual exhaust with glass packs, and a Corvette open air cleaner stop the Quadrajet. Rawhide has a Vortec 5.7 with a 4L80E and 4.10 G80 and it tows a Uhaul trailer like it's barely there. Same truck has moved a couple of large bumper pull trailers in the RV park, no problem. Small blocks have a lot of low end torque and that's exactly what you need to tow. The Denali did fine towing, it just gets the max torque at a higher RPM point. And sucks the gas too, worse than when empty.
 
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