Air and Fuel Fuel Injection Systems and Components - Electronic

DeatschWerks

550cc Fuel Injectors for LS Engines

$699.00

SKU: DW-16U-LS-0550-8

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The DeatschWerks DW-16U-LS-0550-8 is a set of eight 550cc fuel injectors designed for LS engines. This kit includes adapters to fit tall, mid-length, and short injector setups, along with all necessary components for installation.

These injectors are characterized in-house and are flow-matched for optimal system performance across various operating conditions, including idle, cruising, and high load. They feature high impedance and high resistance, with a maximum nominal pressure of 72.5 PSI.
Show original supplier description
The DeatschWerks DW-16U-LS-0550-8 is a comprehensive fuel injector kit designed to provide a high-performance solution for LS engines. This kit includes eight 550cc DeatschWerks fuel injectors, specifically engineered to be compatible with any LS manifold, fuel rail, and engine combination. Included in the kit are all the necessary components for a hassle-free installation: 8 x 550cc Short DeatschWerks Fuel Injectors, 8 x EV6 Pigtails, 8 x Midlength Injector Adapters, 8 x Tall Injector Adapters, 8 x Adapter Clips, 4 x Non-Flex Fuel OE Truck Fuel Rail Spacers, 8 x 15.5MM Lower O-Rings (Orange), and 8 x 14.6MM Lower O-Rings (Black). This all-inclusive approach ensures minimal installation difficulty. DeatschWerks emphasizes the importance of accurate data for proper tuning. All DW injectors are fully characterized in-house according to SAE J1832 standards, with data available in General Characterization Summaries and Application Specific formats. The injectors undergo a multi-point dynamic flow testing process that mimics real-world engine conditions, balancing them at low, transitional, and linear pulse widths to ensure optimal performance across the entire operating range, crucial for a smooth idle and safe peak horsepower. Key specifications include a flow rate of 473 CC/min (45.1 LBS/HR) at 29.0 PSI, 571 CC/min (54.4 LBS/HR) at 43.5 PSI, 667 CC/min (63.5 LBS/HR) at 58.7 PSI, and 754 CC/min (71.8 LBS/HR) at 72.5 PSI. The injectors operate at a maximum nominal pressure of 72.5 PSI and feature a high impedance (12.5 ohms) with a metal and composite plastic body design.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDeatschWerks
Part NumberDW-16U-LS-0550-8
CategoryAir and Fuel

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy