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Old 07-25-2010, 11:13 PM   #39
79gmcc15
Gettin It One Pice At A Time
 
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Join Date: Oct 2004
Location: everett, washington
Posts: 2,688
Re: Post about my GMC "making it"

yes they are interference motors. have you tried running some seafoam through it and see if it will un-stick the valves?
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Work In Progress 1979 GMC C1500 Trailering Special.
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