Re: are mustang sohc 4.0 L engines any different?
There's no difference. Both units at their highest, only produced 210hp. Depending on the year of your X, it might have the 205hp SOHC, but for 5hp, you'll more than likely lose that in drivetrain loss/exhaust back pressure, computer tuning to make the new engine work, etc.
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!