The shorter upper manifold casting on the 87/88 TC (square design) has the attachment point about 0.35" lower than the taller intake on all the other engines. So both will fit, with a wee bit of extra force and care during assembly.So just to confuse things, or clarify them, do the 87-88 TC square intakes, the ones with the Ford logo and stripes on the upper, use the same EGR tube as 85.5-86 SVO's because they are less tall right???
The angle of entry of the tube to the EGR valve between the two manifolds (in0line versus square) is drastically different though.