The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

67ChevyRedneck · 02-28-2008, 09:46 PM

The newer 6.0L's have 367hp and 380 or so? ft/lbs of torque and GM has even "built" something called "torque management" into the software for the trucks so you can't burn the tranny up. Basically, it's a GM band aid for using a high HP/tq engine with an older "weak" tranny. The 4L60 and 4L80's are great dependable trannys, but they weren't meant for high hp/tq abuse. When they were fist designed the 5.3L only had 290hp and around 310ft lbs of torque. The new 6l60's are a MUCH more stout tranny that can take more hp/tq, the 6.2L is an example

02-28-2008, 09:46 PM	#11
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 5.3 cam swap from car craft The newer 6.0L's have 367hp and 380 or so? ft/lbs of torque and GM has even "built" something called "torque management" into the software for the trucks so you can't burn the tranny up. Basically, it's a GM band aid for using a high HP/tq engine with an older "weak" tranny. The 4L60 and 4L80's are great dependable trannys, but they weren't meant for high hp/tq abuse. When they were fist designed the 5.3L only had 290hp and around 310ft lbs of torque. The new 6l60's are a MUCH more stout tranny that can take more hp/tq, the 6.2L is an example __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 02-28-2008 at 09:48 PM.