Modern Parts for an Old
L-Head

With less horsepower than many modern industrial lawn mowers, the 134ci L-head motor is not a powerhouse. Especially when you don’t know how many years those original 60hp mills have been prorated. If you are lucky the little motor is making somewhere upward of 45 horses. Here are some modern-ish tune-up parts that we tried out on our flathead in hopes of gaining some grunt.