I would have loved to go this route, but unfortunatly these springs have an outside diameter of 1.494" and both sets of mag heads I have measure 1.440" on the valve seat, I have a new set of Sealed power 340 replacement springs that I tried only to find they did not fit, measured them at 1.5" wide. The Hughes 1110 springs are a perfect fit at 1.440". LA's do have a larger and cheaper selection of valve springs I have noticed.