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Old 09-15-2012, 03:19 AM   #21
chebyshortbox65
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Join Date: Nov 2011
Location: yucca valley,ca
Posts: 206
Re: 4.3l vs. 5.7l in a commuter truck

For what you want I'm for the 4.8 5.3 swap its easy cheap almost 300 hundred horse stock you can pick them up dirt cheap and get good mpg I'm running 5.3/700r4 in a 81 and get 20 plus running from palm springs to bloomington most everyday it hauls ass is a ball to drive sounds good what can get better I do these swaps for people full time and I have yet to have someone regret doing it oh and that 20 mpg is with the a/c blowing 40 and the cruise set at 80 just my .02
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