yes and no...some of the parts are the same. the center bullet and bars are the same. obviously the parking lights are different
The '50's 'wrap around' grill bar extension covers the place where your '49 park lights are now located. The '50 park lights are below that and will require holes drilled to permit the park lamp and attach bolts for the wrap around/lamp housing. A modification, yes, but not "cutting up" in my book. Ray