You will want 3/8" x #16 bolts
You need (2) 2 7/8" x 3/8" #16 bolts
you need (4) 1 3/8" x 3/8" #16 bolts
manifold bolts manifold bolts pic The two larger bolts are installed on the very end of each side of the manifold with the keeper that is next to the large bolt.
The smaller bolts go in-between with the keeper shown.
Tim
