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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Secure your cast aluminum intake manifold with this GM Car Manifold Bolt Set, designed specifically for 396 / 375 HP engines. Engineered for durability and precision fit, this set ensures your manifold stays firmly in…
Secure your cast iron intake manifold with this GM Car Manifold Bolt Set, designed specifically for 396 / 375 HP engines. Engineered for durability and precision fit, this set ensures your manifold stays firmly in…