WOT Junkie and avid corn burner
Join Date: Jul 2008
Location: Virginia Beach, VA
Not exactly the same, 99-00 Mustangs and many of the truck 4.6s use the Windsor cast heads, so you're stuck with the windsor style valve covers with the pass side oil fill - which IME is not friendly with GT intake tube and A/C line fitment.
Not to mention, blown out spark plugs. lol
I'd look for heads with the full spark plug threading.
Michael M. ASE P2 Automobile Parts Specialist.
1996 Thunderbird LX. Gone, but not forgotten Oct 1995-March 24 2016 Trick Flow headded, E85 guzzling beast.
1985 Mustang GT. modified stock Holley 4180C, Weiand Street Warrior intake manifold, equal length headers, true dual exhaust, 5 speed, 3.55:1 8.8'' rear end, Ford Racing 10.5" clutch.
1998 Mustang GT premium. Trans Go shift kit, Bassani catted x-pipe, PI heads, cams, intake swap, Accufab elbow, SCT Xcal 4 tune, Eibach Pro-kit, Maximum Motorsports Caster/camber plates, fat tires. Banging audio system.