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Holley EFI HyperSpark Ignition Adapter 558-323

Holley EFI HyperSpark Ignition Adapter 558-323
Holley EFI HyperSpark Ignition Adapter 558-323Holley EFI HyperSpark Ignition Adapter 558-323
$55.99 ea
NEWARRIVING SOONEstimated Ship Date 03/22/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/29/2024
Model: 4007819
Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104.
  • Used to run a "timed sequential" fuel strategy, with Holley EFI V5 Build 160 or Later, or Terminator X.

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



Emission Code 3
Harness Application Universal
Harness Type Ignition
Length 17 In.
Part Type Ignition Harness
Product Type Ignition Harnesses
Proposition 65 www.P65Warnings.ca.gov


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Holley EFI HyperSpark Ignition Adapter 558-323:
Classic Chevy 2024