GJYSYP

Precision-machined stainless steel oil block-off plugs that seal AFM oil passages on non-AFM GM LSX and LT engines (4.8–6.2L) to prevent unwanted oil flow. This 8-pack from GJYSYP is engineered for late-model GM small-blocks—LS1, LS2, LS3, LS7 and LT1, LT4, LT5 families—covering 2008–2023 engines...

GJYSYP Oil Valley Seal Plugs are an 8-piece kit designed to seal AFM/DOD oil passages in genuine GM DOD/AFM valley covers for 2005–2019 Gen IV and Gen V LSX and LT engines. This kit provides OE-compatible plugs that block the AFM/DOD oil passages when...