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Old 05-06-2017, 10:49 AM   #3
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Join Date: Apr 2017
Location: New England
Posts: 15
Re: 1981 GMC K2500 Long term build

It has the C6P heavy suspension option (8600 GVWR) which allowed it to run the non-pollution controlled LT9 350.

350/TH400/NP205 10b/14b sf 4.10:1
81 GMC K2500/C6P
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