Hi l have a 87g.

b250 ram van+exghaust manifold crack

ed.l found a loose engine on the ground so i dont know what it came out of it does not have the big metal disc on heat riser shaft+has open pocket choke pulloff its also painted orange.anyway the 3 intermanifold gasket bolts dont want to unscrew.if i just install these "new" manifolds as a unit; what are the chances of the intermanifold gasket leaking.thx

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jackmcginn