A LITTLE DAB

Jul 3, 2025 | BLOCK WORK

Using Grease on Steel Main Caps & Aluminum Blocks

It is good practice to lube up the main cap registers on aluminum blocks before seating the main caps. I have noticed the registers will peel aluminum when driving a steel main cap into place. Applying a thin layer of high-pressure grease to the cap and block will help prevent this.

Nick Jones
Automotive Machine
Fraser, MI

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