the 5.0 out of a 88 cougar will it fit in 87 thunderbird with abs

Hi Lex! That's a tough one. You'll need to check with a local mechanic so he can compare mounts and how it interacts with your tranny. That really needs to be an on-site consult. Good luck!

i'm not sure how the engine swap will affect the abs. but the 5.0 will physically drop in with minimal effort. you'll need the engine to k-member mounts from the 88 though and you'll need a tranny as well, as the 4cyl and v8 have different bellhousings. i'm quite sure the turbo coupe runs a T5 so maybe it's possible to just change the bellhousing, althought i believe the turbo T5 wasn't as robust.