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4. To illustrate the gains offered by the stroker motor, we installed the same 260H-13 Comp Cam used originally in Part 1 on the 5.7L. We had a wilder cam profile waiting in the wings, but wanted to start with the mild cam. The 260H-13 offered a .522/.525 lift split, a 208/212 duration split and a wide 113-degree LSA.