1998 Ford mustang stock horsepower Source Source Source Source Source Source Source Source Source Source Read Also: How much horsepower does a 1998 ford mustang gt have How much horsepower does a 1998 ford mustang v6 have 1998 Ford mustang gt horsepower What is the horsepower of 1998 ford 4.6 Much horsepower does 2000 ford mustang gt have 1998 Ford mustang v6 horsepower