Exterior Components Body Panels and Components

Holley

180 DEGREEE FITTING ASSEMBLY

$55.69

SKU: H00E 534-321

Out of Stock
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Holley Fuel Rail Adapter Fitting is a 180-degree AN to AN coupler designed for connecting Holley fuel rails to a GM factory fuel line. It features -8 AN male and -8 AN female O-ring connections and is constructed from aluminum with a black anodized finish. This fitting is sold individually.
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Part #: 534-321

Finally, an affordable Coyote intake manifold that also performs! The Hi-Ram and Ultra Lo-Ram are designed to fit stock bolt pattern OE heads found on the 2011-2023 Ford 5.0 Coyotes and related engine families, such as, Voodoo and Predators. These kits include fuel rails for use with OEM type fuel injectors and clips, mounting hardware, and O-ring gaskets. Offered in black and natural as-cast finish, both manifolds have a 9.20-inch runner length and are designed to improve the mid to high RPM powerband.

Features:

  • As-cast aluminum construction: more durable for boosted applications, can be welded for modifications
  • Modular design: accessible runner entries for porting, allows accessories like intercoolers and nitrous plates
  • 300-911 and 300-912 Ultra Lo-Ram will fit under stock hood with stock engine mounts in 2015-23 Mustang
  • Refined port design with streamlined injector boss for reduced turbulence without loss of flow area
  • Allows a variety of throttle valves including large monoblade, 2015-20 GT350, 2007-14 GT500, 2019-23 GT500, GM LS 4 bolt, 2011-23 Ford Mustang GT (with optional adapter 717-18)
  • Fuel rails with -8AN ports and dual 1/8 NPT accessory ports for gauges or Gen 3 direct injection fuel line hookup
  • 300-911 and 300-912 front inlets can be interchanged between round and oval with service parts
  • Plenum Volumes: 300-910 9.8-liters, 300-911 8.4-liters, 300-912 8.2-liters
  • Two 1/8 NPT ports on all manifolds. Two 3/8 NPT ports on all manifolds, except 300-911 has one

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHolley
Part NumberH00E 534-321
Weight0.27 lb

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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