12-Point External Engine Fastener Kit

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Fastener Kit - External Engine - 12-Point - Evolution Features precision-rolled threads for optimum engagement, to prevent galling and promote more consistent torque loading Wide u nderhead flange design provides even load distribution for optimum sealing of surfaces - preventing leaks Tensile strength rated @ 170,000 psi; superior and stronger than OEM and stronger than grade 8 fasteners Manufactured by ARP® to Feuling's® exact specifications Includes moly assembly lubricant for installation Quality 12-point heat-treated stainless steel Made in the USA Not for '23 models with 121" VVT motors. Show more