well heres my fc i trades for my 87 corolla sr5.
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i was wondering if the FD four piston calipers will bolt up with base model calipers i have on now on my FC. if no what would be needed

Likely not. The caliper will not line up since the brake rotors are different sizes. You'd have to trade out the hubs at least. Going to 4 piston 2nd gen calipers and rotors is a common modification though; you can find threads on it with a search of the 2nd gen tech section.