FLATHEAD POLISHED PERFORMANCE VALVE SPRING SET (P/N JX-120-P)
|INSTALLED HEIGHT||VALVE SEAT PRESSURE||VALVE OPEN|
Springs wound from upper-clean chrome silicone wires, peened, heat treated, chamford and compound surfaced polished producing a longer spring life with a zero-sum defect reading of valve float, load loss or bounce under the performance flatheads high stress service. Set includes correct seat pressure, controlling hard anodized #7076 aluminum spring spacers, proper seven degree spring retainers, with heat treated matching machined valve locks. All producing that perfect desired 90 pound closed valve seat pressure.