Nissan RB Oil Gallery Block off inc Tap Bit

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RB Oil gallery threaded bungs. A much needed product when building a Nissan RB engine.The main oil gallery in all RB/RD blocks is sealed from factory with a steel straight walled plug, it needs to be removed for the gallery to be cleaned before a build.We've designed a set of custom size threaded oil gallery block offs and have included a tapping tool in the kit, no drilling required before tapping other than drilling a hole through one bung to smack the other side out with a rod.This product fe