Supertech valve locks (keepers) for Honda & Acura B/H/K-series VTEC engines. Newly redesigned and now fully CNC Machined for a higher quality and better precision finish.

These are 5.5mm and 7 degree design, 32 total pieces (enough for a 16valve head).

Compatible with the following engines:

• All B-series VTEC heads (B16A/B, B17A, B18C/C1/C5)
• All H-series VTEC heads (H22A/H23A VTEC)
• All *K-series VTEC heads utilizing factory dual valve springs
  (02-03 K20A2, 01-10 JDM K20A Type-R, 04-08 K24A2).

*K-series Note:
These keepers are NOT COMPATIBLE with the following factory single valve spring equipped K-series engines:

• 02-05 Civic Si (K20A3)
• 06-11 Civic Si (K20Z3)
• 02-06 RSX Base (K20A3)
• 04-06 RSX Type-S (K20A2/Z1)
• All K24 Accord engines (K24A1/3/4)

The listed engines would need a full dual valve spring valve-train conversion (retainers, springs, and spring seats) in order to use these Supertech keepers.