*excludes Alaska, Hawaii & Puerto Rico

Fuel Injector Spacer Set of 8 LS1 LS6 Intake Manifold to LS Truck Injector Adapter

In stock
- +

LS1 LS6 to LS Truck Fuel Injector Spacer Set

This spacer set allows you to adapt short LS Truck fuel injectors into a taller LS1/LS6 intake manifold and fuel rail.

  • Commonly used when swapping an LS1 or LS6 intake on an LS Truck engine.
  • These spacers adds approximately 17.3mm (.68") of length to the fuel injector
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Package includes: 8ea spacers

More Information

Manufacturer Part Number 551371
UPC 656729843710
Weight 0.310000
ICT Manufacturer ICT Billet
United States United States
Length Inches 3
Width Inches 4
Height Inches .7

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.