12-Point External Primary/Transmission Engine Fastener Kit

Fastener Kit - External Primary/Transmission - 12-Point - XL

• Tensile strength rated @ 170,000 psi - superior & stronger than OEM & stronger than grade 8 fasteners
• Features precision rolled threads for optimum engagement, to prevent galling and promote more consistent torque loading
• Wide underhead flange design provides even load distribution for optimum sealing of surfaces - preventing leaks
• Top engine builders demand quality fasteners! Secure your engine with complete confidence.
• Manufactured by ARP® to Feulings® exact specifications
• Kit 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.