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Pyrotechnic · 03-16-2010, 07:35 PM

5.3 all the way.

The 4.8 will get better mileage in small trucks (i'm sure the engine exists to improve the CAFE rating they have to meet). However, in a bigger truck it's going to need numerically higher gears and it will need to rev like crazy to move the truck, all while getting worse gas mileage than the 5.3

Not to mention, the 4.8 and 5.3 are the same price at wrecking yards so you aren't saving anything.

03-16-2010, 07:35 PM	#3
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: CCSB Build 5.3 all the way. The 4.8 will get better mileage in small trucks (i'm sure the engine exists to improve the CAFE rating they have to meet). However, in a bigger truck it's going to need numerically higher gears and it will need to rev like crazy to move the truck, all while getting worse gas mileage than the 5.3 Not to mention, the 4.8 and 5.3 are the same price at wrecking yards so you aren't saving anything. __________________ 1977 GMC Sierra Grande Last edited by Pyrotechnic; 03-16-2010 at 07:36 PM.