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Holley EFI 534-204 LS1/LS2/LS6 Fuel Rail Kit for Dual-Quad & Cathedral Port Hi-Ram

Manufacturer

Picture for manufacturer Holley EFI

Part Number

534-204
8 reviews
Sale Price

$318.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Holley EFI 534-204 is a high-volume billet fuel rail kit engineered for LS1, LS2, and LS6 engines equipped with Dual-Quad and Cathedral Port Hi-Ram intake manifolds. Designed to handle the rigorous demands of high-horsepower applications, these rails feature a ½" diameter bore to maximize fuel flow and dampen fuel pulsations—keeping your engine fed under any load condition.

Each rail is configured with ¾-16 O-ring ports (AN-8) for a secure, leak-free fuel connection compatible with standard AN-8 fittings and high-flow fuel lines. The complete kit includes everything needed for a proper installation.

Kit Includes:

  • (2) High-volume billet fuel rails with ¾-16 O-ring ports (AN-8)
  • (4) Spacers — ¼" I.D. x ½" O.D. x 3/8" thick
  • (4) Washers — ¼" x 0.50" O.D. x 0.06" thick
  • (4) ¼-20 UNC x 1-¾" zinc-plated socket head cap screws

Note: This part is designed for racing use only and is not legal for use on emissions-controlled vehicles.

Products specifications

Brand

Holley EFI

Category

Air and Fuel Delivery

Color

Black

Emission Code

4

Fittings Included

No

Fuel Injection Type

Port

Fuel Injectors Included

No

Fuel System Type

EFI

Gasket Or Seal Included

No

Grade Type

Performance

Material

Aluminium

Part Type

Fuel Injector Rail

Product Type

Fuel Rail

Sub Category

Fuel Injection System and Related Components

Type of Component

Fuel Rail

Warning

California Proposition 65

Warranty

Manufacturer's Limited 90 Day Warranty

Good website, good prices. Could use a little better info regarding order fulfillment.

Top notch business prompt on time

A dealership broke one of the parts of a rim I have on a car and needed a part in a pinch! Price was great and shipping was incredibly fast! Really happy with the selection and listing such a specific part, other sites just listed part numbers without pictures so THmotorsports made it easy to trust.

Very easy to deal with. All of the products showed up NIB as promised, and the delivery was very quick. Would certainly use these folks again.

Good experience

Great price, easy ordering process.

Great shopping experience.

Everything went smooth, no complaints

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