This HKS RB30 replacement cylinder head cover is a direct-fit service or part intended for RB30 crate engine applications. The description identifies the part as a head cover replacement for the RB30, providing the external cover needed during rebuilds or engine assembly. It’s a hardware item listed to match the RB30 cylinder head configuration for repair or restoration work.
HKS RB30 Crate Engine Replacement Cylinder Head Cover