ARP 144-2001 Black Oxide Hex Intake Manifold Bolts

Features:

• Facilitates optimum sealing of gasket surfaces to prevent intake manifold leaks
• Manufactured from chrome moly steel with a black oxide finish
• Rated at 170,000 PSI, which is considerably stronger than Grade 8 hardware
• Precision rolled threads prevent galling while promoting more consistent torque loading
• Heads are conventional hex style, and washers are included