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LS Intake Manifold Port Block Off Plate Dust Cover Plug Wash Paint LS1 LS3 LSX

In stock
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LS Cylinder Head Covers

Compatible with both rectangle and cathedral port, GM LS series engines (Will not fit LS7 heads)

  • Clean your engine without getting debris inside your intake ports. Use these plates to store, wash, paint, or clean your engine
  • Uses oring to provide a water tight seal
  • Includes: 2 plates with orings and bolts
  • Made in Wichita, Kansas from aerospace grade, USA billet aluminum

More Information

Manufacturer Part Number 551381
UPC 797822586170
Weight 2.470000
ICT Manufacturer ICT Billet
United States United States
Length Inches 16.5
Width Inches 4
Height Inches 1.5

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.