VTT Head Port Block Off Kit N54/N55/S55/B58/S58

Universal Head Port Block Off Kit from VTT.

We recommend this kit for high boost/high horsepower applications. High boost can cause high crankcase pressure caused by pressurized air escaping through the factory 2-way PCV ports on the intake side of the head. This kit solves that issue by allowing you to tap the PCV ports into threaded holes, and insert the provided block off plugs.

Highly recommended in conjunction with VTT Billet Valve Covers

Works with the following engines:

-N54

-N55

-S55

-B58

-B58TU

-S58