• 1.5" open center carbon fiber spacer. Made in the USA from a  blend
• Fits 2bl Holley Motorcraft and Autolite carbs 4412, 2150, 2300 and other similar carbs
• Bolt pattern is 3.460 x 5.160 bore size is 1.69
• Check our other listings for a 1" and 2" version. Open center and 2 bore. 
• Very light weight Extremely strong and temperature resistant
• Includes Felpro gaskets and stud kit as pictured.
• Can be painted ,clear coated or used as is.
• Items ship in one business day many times the same day payment is received