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Holley Carburetor Spacer 17-86

Holley Carburetor Spacer 17-86
$389.87 ea
NEWARRIVING SOONEstimated Ship Date 04/10/2023 (If Ordered Today)11 available from HOLLEY PERFORMANCE PRODUCTS as of 03/26/2023
Model: 3991894
Supplier has not provided any fitment data for this product.
[More Info]
7-degree or 12- degree wedge with Dominator flange allows carburetor to sit level on tilted engine installations
  • 1.5 in. Tall
  • 4 Hole
  • 6061-T6 anodized Aluminum
  • For 2 in./2.125 in./And Up To 2.4 in. Bore Sizes
  • Tapered To Maximize Airflow
  • Provides Increased Plenum Volume
  • Improved Fuel Atomization
  • Decreases Reversion
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size


Carburetor Type Dominator
Emission Code 5
Flange Style 4500
Flange Type 4500
Material Aluminum
Part Type Carburetor Spacer
Thickness 1.500 in.


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Holley Carburetor Spacer 17-86:
Classic Nova 2023