Models A & B are for the exhaust manifold to head connections.
Model C is the stud that is in the outlet of the rear exhaust manifold. (M10 stud)
Sold individually.
Exhaust manifolds: stud/nuts to 132 in/lbs and Nuts to 156 in/lbs
Stud B: 5/16-18 bottom, M8-1.25 top
To get a full set for your 3800 engine:
You would need 2 of A for front and 2 for the rear
You would need 4 of B for front and 4 for the rear
You would need 2 of C for the rear manifold to DP connection
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