Permanent AFM Delete Oil Passage Plugs

Permanent AFM DOD Delete Oil Passage Plugs

DOD Delete Plugs – High-Pressure Blind Sealing Plugs for AFM Delete (M8 Aluminium Engine Set)

If you’re deleting AFM (Active Fuel Management) on your LS engine, you need more than just a new cam and lifters. One crucial upgrade is a set of DOD delete plugs. These M8 aluminium high-pressure blind sealing plugs are designed to permanently block off the oil passages used by the AFM system. This ensures long-term reliability and helps maintain stable oil pressure in your engine.

Why You Need DOD Delete Plugs

When performing an AFM delete, most people re-use the factory-style valley plate or install an aftermarket non-AFM valley cover. These covers typically rely on rubber o-rings to seal off the high-pressure oil galleries that once fed the AFM lifters. The problem? Those o-rings degrade over time. They become brittle, shrink, and eventually leak. Internal oil leaks at this point can drop your oil pressure and starve the top end of the motor, leading to costly engine damage.

DOD delete plugs offer a permanent solution. Made from aluminium and precisely machined to M8 dimensions, these plugs press into place and seal the passages mechanically—not just with rubber. This is the same technique GM uses to block off coolant passages on newer LS cylinder heads, so it’s tested and proven in OEM applications.

Key Features

• One full engine set of DOD delete plugs (8 pieces)

• M8 aluminium construction for corrosion resistance and durability

• Designed to fit tightly into the oil galleries originally used for AFM

• Replaces unreliable o-rings used with standard valley plates

• Factory-style sealing method using mechanical interference

• No more internal oil leaks from worn-out o-rings

How DOD Delete Plugs Improve Reliability

Even if your AFM delete kit includes a valley plate with built-in o-ring seals, oil pressure problems can still occur down the track. The valley cover is mounted horizontally above a hot engine block—o-rings are exposed to heat cycles, pressure fluctuations, and oil contamination. Over time, these seals simply fail.

By installing these high-pressure DOD delete plugs, you eliminate that failure point. Each plug provides a tight, leak-free seal that won’t degrade with age. That means you can confidently drive your AFM-deleted engine hard, knowing you won’t suddenly lose oil pressure due to a hidden leak under the intake manifold.

Compatibility

These plugs are compatible with LS engines equipped, including:

• L76 &  L77 AFM variants, as well as LS2, L98 and LS3.

• Engines using standard or non-AFM valley plates

Order Your DOD Delete Plugs Today

Whether you’re doing a cam swap or a full AFM delete, don’t overlook these plugs. A reliable AFM delete isn’t just about performance—it’s about preventing internal leaks that could cost you an engine. These M8 aluminium DOD delete plugs are the smart, permanent way to seal off AFM oil passages.

Boost reliability. Seal it right. Choose the proven solution with our precision-fit DOD delete plug kit.

Please note: The shank on these rivets is 3.5mm. You will require a rivet gun that can accept this size shank.