what size are the intake bolts for vortec manifolds?
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Joined: Oct 1999
Posts: 1,112
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From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
what size are the intake bolts for vortec manifolds?
I have an Air Gap manifold that I am going to use with the vortec heads. I need the intake bolts but I don't know what size to go buy. I think that they are 5/16 but need to know the threads per inch. I'm pretty sure they're not course. Also what length? Thanks.
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From: Jackson County
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