The HKS Head System is the Lifter Type Set and is an essential set for those wanting to rev to high RPMs reliably. The head system will be able to rev up to 10,000 RPMs!! For best results, HKS recommends the use of this set with the Stage 3 Pistons and Con Rods. Users should use Stage 2 cams or higher.

Included in the set are the following:

-Step Pro Strengthened Valve Springs
-Step Pro L Valve Retainer Set
-Step Pro Lifter Set
-Valve Stem Seal Set

*Camshafts sold separately

**Cylinder head must be modified when using high lift cams

Get this and all your JDM direct from Japan with RHDJapan!