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The COMP Cams ID locator spring seat is a hardened-steel valve spring locator that centers the seat with an inboard shoulder and holds the spring in place under high-RPM, high-pressure conditions. The 4781 variant has a 1.550" OD and a .570" ID and is recommended for use with a range of COMP springs including 950, 954, 26955, 26956, 26957, 999, 26097, 929, 26115 and 933 to suit specific valve setups.
COMP Cams ID Spring Seat 1.55 X 570 X 7
