Fits 3.8L engine 89-95 T-BIRD, Mercury cougar, mustang, Taurus , Sable, 3.8L Engines, Heads were rebuilt and driven for about 12-15,000 miles, there are no leaking valves, no burnt valves, no cracks on the heads, also comes with all the rocker arms, head bolts and push rods, valve covers clean and in excellent condition, ready for installation.