Porsche Camshaft for 356 models without gear wheel. Years 1950-1954. This camshaft is specially made for the 2 piece Crankcase with the 28mm axial bearing. This camshaft is not for the Pre-A with the 3 piece crankcase. Made to the original Specifications for the 1500S engine. This camshaft can be used for a 1500N engine. Make sure the compression ratio is at least 8.2:1 Lift at cam: 7,45mm Spread: 108 ° Open at 0,51mm ( cam ): 262 ° Open at 1,27mm ( cam ): 233 ° Open at 2,54mm ( cam ): 205 ° Open at 7,62mm ( cam ): 0 Intake opens: 19 ° before Intake closes: 54 ° after Outlet opens: 54 ° before Outlet closes: 19 ° after