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LS 1/8" Coolant / Steam Port - Top Exit Cylinder Head Crossover Tube Adapters LS1

In stock
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Coolant Ports with Top Ports

Compatible with all LS series engines

  • Includes: 2 coolant ports, 2 O-rings and 2 bolts
  • 1/8" NPT threaded holes to crossover steam/coolant from cylinder heads
  • Can be installed on the front or rear of the cylinder heads
  • Proudly Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum, natural finish

More Information

Bullet Point 1 Coolant ports with top ports
Manufacturer Part Number 551679
UPC 656729842461
Weight 0.180000
ICT Manufacturer ICT Billet
United States United States
Length Inches 2
Width Inches 2
Height Inches 1

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.