5.9 Cummins vs 5.3L? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Edahall · 08-24-2015, 02:08 PM

Depends a lot on the use of the truck. If he is going to be using it for a lot of very heavy towing, then go Cummins. The low rpm torque of the Cummins is nice when towing heavy loads. If he is not interested in shifting a manual transmission, go LS. It costs big bucks to build up a reliable automatic transmission behind a Cummins. As far as fuel economy I get mid 20's with my 3/4 4x4 square Suburban if I keep my speeds down.
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08-24-2015, 02:08 PM	#8
Edahall Registered User Join Date: May 2011 Location: Goliad, TX Posts: 672	Re: 5.9 Cummins vs 5.3L? Depends a lot on the use of the truck. If he is going to be using it for a lot of very heavy towing, then go Cummins. The low rpm torque of the Cummins is nice when towing heavy loads. If he is not interested in shifting a manual transmission, go LS. It costs big bucks to build up a reliable automatic transmission behind a Cummins. As far as fuel economy I get mid 20's with my 3/4 4x4 square Suburban if I keep my speeds down. Posted via Mobile Device



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