Fuel Injector Spacer Adapts shorter LS3 LS7, LS9, LSA fuel injectors and fuel rails onto a FAST LSXR intake manifold Attaches between the fuel injector and the intake manifold Spacer adds approximately 16mm (.63") of length to the fuel injector Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Package includes: 8 spacers and 8 o-rings Inside of bore measures .59 Manufacturer Part Number 551477 UPC 797822585876 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 www.P65Warnings.ca.gov 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.