These Grade 5 hex head bolts are black coated plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds.
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Best Quality Replacement Part High Quality OE Alloy Steel Seals Head To Intake To End Power-Robbing Vacuum Leaks Fits 1950-1954 235 & 261 CI 6-Cylinder Original intake manifolds on your early Chevy as well as performance Fenton and…