Theres really not a particular way to tell if your headgaskets have been replaced unless you take apart the block. Now if you have a 91 those engines were really tough. The engines with the headgasket problems were the 94-95's, and since your car has 200,000 it either had them replaced or didnt. The way i figure it, if my car has no coolant in the oil and its not blowing out white smoke everything is ok. Now on the tranny cooler go with a 24,000 B&M cooler you can purchase one of these from summit racing. Plus its an easy install.
95- Cougar- SOLD (in loving memory)
Mods-17x9 cobra r's,H&R springs,KYB shocks & struts,removed air silencer,9"K&N cone,gutted cats,dual glasspack setup,cooling fan switch, B&M 24,000 tranny cooler.
Back in the game!!!
97 Lincoln Mark VIII LSC-opal opalescent with black interior, upgraded with a 98 tranny, 18x9 black saleen speedstars, LMS dual tip mufflers, 5% tints all around.