TRC TI TITANIUM VALVE RETAINERS K-series - K20A/K20A2/K24A2 H22 H22a F20/F22C
TRC titanium retainers help to prevent valve float and strengthen your valve train while being featherweight. They can handle a maximum net lift of 15.10mm. Coil bind is measured at 24.7mm and seat pressure was measured at 10.51lbs. per min.
Engine Applications
- B-series VTEC (all)
- F20/22C (S2000)
- H22Ax (all)
- K-series - **K20A/K20A2/K24A2 engines.
16pc set.
See list below for factory single and dual valve spring equipped K-series vehicles/engines:
Factory single valve spring equipped K-series engines:
- 02-05 Civic Si K20A3
- 02-06 RSX Base K20A3
- 04-06 RSX Type-S K20A2/Z1
- 06-11 Civic Si K20Z3
- 02-mid'03 RSX Type-S K20A2
- 04-08 TSX K24A2
- 00-09 S2000 F20C/F22C
- 01-10 JDM RSX Type-R & Civic Type-R K20A
Supertech keepers (5.5mm 7-degree keeper) part number: KPR-5.5/7A x 32pcs
OEM Honda/Acura part number: 14781-PR7-A01 x 32pcs
If performing a full dual valve spring upgrade to a single valve spring equipped K-series engine, dual valve spring seats are required to complete the upgrade aside from dual valve springs, retainers, and keepers,.
**Important K-series Retainer Info:
Titanium K-series retainers require the use of either OEM K-series dual-valve-spring keepers or Supertech brand keepers for proper fitment. Keepers from a single valve spring equipped K-series engine are incompatible with TRC titanium retainers. Honda changed the OEM keeper groove angle on all 04+ K20-series engines (ie. single valve spring equipped) making them incompatible with all dual valve spring retainers.
