This Holley Intake Manifold Spacer is a phenolic carburetor spacer built for the 2300 flange, with 1 11/16 in. bores and a 1 in. height to help improve air/fuel distribution and reduce carburetor heat soak.
Specifications:
- Flange Style: 2300
- Material: Phenolic
- Thickness: 1 in.
- Bore: 1 11/16 in.
- Product Type: Carburetor Spacer
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 17-72
This spacer is designed for use as a carburetor spacer only. It is not intended to block off an existing O.E. EGR system on O.E. intake manifolds such as the 351M, 400M, or 390 Ford models.
FAQ
What flange does the 17-72 spacer fit?
It's built for the 2300 flange.
What are the bore size and height of this spacer?
1 11/16 in. bores and a 1 in. height.
What material is the spacer made from?
Phenolic.
Can this spacer be used to block off an EGR system?
No, it's designed only as a carburetor spacer, not to block off an O.E. EGR system on manifolds such as the 351M, 400M, or 390 Ford models.

