Thread: LS1 into a 73 cheyenne
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Old 12-10-2009, 05:23 PM   #21
clinebarger
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Join Date: May 2009
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Re: LS1 into a 73 cheyenne
Those are not 98 model heads 97&98 LS1s had perimeter bolt valve covers VS the center bolts on the 99 & up
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