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timing sets and cam question

muddysub

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i need to replace my timing set but a lot of the sets in summit say " not for use with factory roller cam" do i have a roller cam? it's a 1989 gmc suburban 3/4ton 4x4 with a STOCK tbi 350 with 153,000 on it.
 
No. It is the newer trucks that have the roller cam. I think cars of the same era (of your truck) came w/ roller cams but not trucks.
 
thankyou so much! i was beginning to think no one knew anything about cams!
 
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