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Old 02-20-2007, 03:54 PM   #78 (permalink)
ctaylorzl1
6.2 Liter LS3 V8
 
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Join Date: Nov 2005
Location: Indiana
Drives: 1996 Dodge 3500 CTD 4x4 1992 Camaro RS 305
Posts: 3,301
Re: Hot Silverado 427 SS Concept May be Built

Quote:
Originally Posted by chakis24
if the z06 can get 28 mpg....im sure this would be in the low 20's.
assuming that the Silverado SS's 6-speed manual tranny had the same gear ratio's that the Z06 has. With a .56 OD gear then I'm sure that it will get low if not mid 20's! With that high of a OD gear the engine is all but at idle when crusing on the highway. I'm not sure of the rear end gears in the truck, and they may have changed the ratios in the tranny due to the weight of the truck as compaired to the Corvette, but I'm sure it could get the mest mileage out of all the Silverado models(which is ironic, due to the engine being the largest in size and hp)
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