*Ships in 1-5 business days.
Supertech steel dual valve spring seats for Honda K-series and F20C/22C DOHC VTEC engines.
- K20A - JDM EP3/DC5/FD2 Type-R Engine
- K20A2 - 02-04 RSX Type-S
- K20Z1 - 05-06 RSX Type-S
- K20Z3 - 06-11 Civic Si
- K24A2 - 04-08 TSX
- F20C/F22C - 00-09 S2000
16pc steel spring seat set.
This is a required component when converting a factory single valve spring equipped K20A2/Z1/Z3 engine to dual valve spring. Dual valve spring retainers and keepers are required as well to complete the conversion. None of the factory single valve spring valve-train components are compatible with a dual valve spring upgrade.
*Note: All engine internals are non-refundable.