O-Ring Head Service – 6.0L / 6.4L Power Stroke Engine Internals as well as a vacuum

as well as a vacuum regulator

88-92 Toyota MX83 Cressida

The retention plate’s have 6 oil groves milled on both sides so no matter what oil will get in there and lubricate it

and longevity under extreme conditions

Vacuum regulator

O-Ring Head Service – 6.0L / 6.4L Power Stroke Engine Internals as well as a vacuumThis is a machining service where we modify your 6. 0L or 6. 4L Power Stroke cylinder heads by cutting O ring grooves and installing stainless steel wire rings. These rings bite into the head gasket under torque, creating a stronger, more reliable combustion sealideal for high horsepower and high boost builds. This upgrade greatly improves sealing under extreme conditions, helping prevent head gasket failures that are common in high performance