need help with exhaust maniflod types

[ATrain707]

l these stock exhaust manifolds work? i have a 68 c10 with a 350 sb and a 4speed m/t behind it. my question is will these clear the z bar? i have a set of chrome block hugger headers but they wont work cuz the cross member is in the way. or do i need the ram horn style? to clear my zbar? im jst asking cuz im going to be trading these for a stock set of exhaust manifolds and dont want to trade for the wrong set. anyone have pics of the the 2 different exhaust manifolds on there trucks clearing the zbar? i just wanna get an idea. thanx guys. here are pics of the ones i want to trade for but not sure if they will work