The COMP Cams 26903 single valve spring set is specified for many flat-tappet cam applications with limited installed height. These springs have a 1.404" outer diameter, fit heads with pocket clearance for that size, and can be installed at heights from about 1.500" to 1.700" depending on lift. With an open load around 260 lb and roughly .065" to bind clearance, they suit street hydraulic flat-tappet setups.
COMP Cams Single Spring Valve Set 1.404 OD 1.650 IH .550 Lift