GSC Power Division chromoly exhaust spring seats are offered as a set of 12 sized 0.211in for Nissan RB26DETT/RB26 applications. The product listing specifies material and exact dimension for exhaust spring seat use, enabling engine builders to match these retainers to RB26 valve train assemblies. Use the stated diameter, material and model family to ensure compatibility with existing RB26 components.
GSC Nissan RB26DETT/RB26 0.211in Chromoly Exhaust Spring Seat (Set of 12)