i know this is stupid but will it make any difference if it is a long block
i know this is stupid but will it make any difference if it is a long block
03 GMC RCSB 4.8, Head work by Moon Racing, LT Headers, CAI, TB spacer, E- Fans, Spintech,Built 4L60E,Ultimate servo from TCI,Diablo Sport Tuner ** 4.10 posi rear end, fully built 408 **
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