#3821 Intake Bolt Kit

The EDELBROCK #3821 Intake Bolt Kit is a critical fastener assembly engineered for precision intake manifold installation on high-performance and modified engines. Whether you're rebuilding a carbureted classic, upgrading to an Edelbrock intake manifold, or performing routine maintenance, this bolt kit ensures proper clamping force and reliability. Intake bolts are frequently overlooked, but using OEM-equivalent or quality replacement fasteners is essential—substandard bolts can loosen under thermal cycling, vacuum stress, and vibration, leading to vacuum leaks, rough idle, and wasted fuel.

This kit features 12-point steel construction, which provides superior grip geometry compared to traditional 6-point heads and reduces the risk of stripping when using pneumatic or electric torque tools. The 12-point design distributes load more evenly across the bolt head, critical when torquing fasteners to specification on aluminum manifolds prone to galling. Steel composition resists corrosion and maintains tensile strength across wide temperature ranges, essential for both street and performance applications. The compact packaging (5.75 x 1.95 x 6.65 inches, 0.79 lbs) makes this kit portable and easy to organize in your toolbox or garage workbench.

Mechanics and engine builders choose Edelbrock fastener kits because they match OEM specifications and eliminate mismatched hardware during intake installation. This bolt kit is ideal for anyone installing an Edelbrock intake manifold, performing a manifold gasket replacement, or upgrading an older engine where original bolts are corroded or stripped. Proper torque sequence and fastener quality directly impact sealing integrity and engine performance—cutting corners on intake bolts frequently results in intake leaks requiring costly diagnostics. Stock this kit for routine maintenance, restorations, or performance builds where reliability and fit are non-negotiable.