1982 GMC Sierra LS3 + 6l80e 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cumminclouds · 08-13-2012, 03:23 PM

Like the title reads I am considering starting a swap, I am looking into a moderate LS3 + 6l80 4x4. With the 1st gear of the transmission being 4.06 and the 6th being .66 I am going to put a 3.06 ratio in my diff.... The new Camaros with a LS3 weigh in around 4,000lbs. my truck with a full tank weighed in at 4,800lbs. Would I be able to get good MPG (14-20) and would it still have good enough power to get off the line quick. By moderate I mean cleaning the throttle body + a good tune.. I typically ride on the interstate around 80 and am looking at trying to make it a road trip truck. Thanks

08-13-2012, 03:23 PM	#1
cumminclouds Registered User Join Date: Aug 2012 Location: Tampa, Florida Posts: 34	1982 GMC Sierra LS3 + 6l80e 4x4 Like the title reads I am considering starting a swap, I am looking into a moderate LS3 + 6l80 4x4. With the 1st gear of the transmission being 4.06 and the 6th being .66 I am going to put a 3.06 ratio in my diff.... The new Camaros with a LS3 weigh in around 4,000lbs. my truck with a full tank weighed in at 4,800lbs. Would I be able to get good MPG (14-20) and would it still have good enough power to get off the line quick. By moderate I mean cleaning the throttle body + a good tune.. I typically ride on the interstate around 80 and am looking at trying to make it a road trip truck. Thanks



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