STM Head Port Block Off Plate for 4G63 DSM/Evo Select::Intake Only The STM AEM UEGO EvoScan

The STM AEM UEGO EvoScan Serial Logging Cable allows you to directly log your AEM UEGO to your EvoScan

Rear F: HB453Z

Because of the many head lifting issues on 4G63 blocks running in excess of 35+ PSI

This is intended for the drag car/ weekend warrior

Enkei's Spec-E test setting requires a higher drop point in the impact test and 20% more cycles for the rotary bending fatigue and dynamic radial fatigue tests than JWL standards

STM Head Port Block Off Plate for 4G63 DSM/Evo Select::Intake Only The STM AEM UEGO EvoScanSTM DSM Evo 4G63 head port block off plates are designed to completely seal off your intake and or exhaust ports while you have the manifolds off. Buy the set or individually as needed. Whether you're building your motor or swapping out parts, this will keep dust, debris and creatures out of the ports and also makes your fresh build much more photogenic compared to bunched up paper towels when it comes time to show it off! Also great for shipping