Mr. Gasket Cylinder Head Dowel Pins

Mr. Gasket Cylinder Head Dowel Pins are a precision-engineered solution for ensuring proper cylinder head alignment during any engine assembly or rebuild. Correct head positioning is critical to maintaining a reliable head gasket seal, preserving compression integrity, and supporting long-term engine performance — and these dowel pins are built to deliver consistent, dependable results.

Key Features:

• Precision machined for accurate, consistent fitment and head-to-block alignment
• Case hardened steel construction for outstanding durability and long service life
• Ensures correct cylinder head positioning throughout the installation process
• Helps prevent head gasket failure and compression loss caused by misalignment
• Available in multiple sizes to accommodate a wide variety of engine applications
• Sold in convenient sets for a complete, ready-to-install solution
• Legal for use on emissions-controlled, non-emissions-controlled, and race-only vehicles

Why Replace Your Dowel Pins?

Whenever machine work is performed on an engine block, replacing the cylinder head dowel pins is a smart, low-cost step that protects your investment. Worn or damaged pins can allow the head to shift during installation, leading to gasket leaks and costly engine damage. Fresh dowel pins help ensure a proper, repeatable seal every time the head is torqued into place.

About Mr. Gasket

Founded in 1964 by drag racer Joe Hrudka, Mr. Gasket built its reputation on the track — engineering sealing solutions tough enough to withstand the extreme temperatures and pressures of competition. Now part of the Holley Performance family, Mr. Gasket continues to expand its product lineup with high-quality components trusted by professional engine builders and performance enthusiasts alike.