BLOX Racing retainers are CNC-machined from the highest quality titanium available on the market. These Ti retainers are machined to exact specifications and help reduce the overall weight of the valvetrain area.

16 piece set.

Engine applications: Compatible with all K20Ax and K24Ax series engines with existing factory dual valve spring valvetrain or have been upgraded properly from single spring valvetrain to dual valve spring supported valvetrain.