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*C-10 simplex* · 08-03-2010, 02:01 PM

The 2005 silverado 4x4 with the 5.3 i rented got just about 20mpg and this was with "normal' tires. So, i would guess under 20 for your app.

08-03-2010, 02:01 PM	#6
C-10 simplex Account Suspended Join Date: Dec 2008 Location: indisclosed Posts: 1,515	Re: What kind of mpg should I expect after a engine swap? The 2005 silverado 4x4 with the 5.3 i rented got just about 20mpg and this was with "normal' tires. So, i would guess under 20 for your app.