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Air and Fuel› Fuel Injection Systems and Components - Electronic

Fuel Injector Clinic

660cc High-Impedance Fuel Injector Set

Name: 660cc High-Impedance Fuel Injector Set
Brand: Fuel Injector Clinic
SKU: is303-0660h-sp

$662.51

SKU: is303-0660h-sp

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Overview

The Fuel Injector Clinic IS303-0660H-SP is a set of high-performance fuel injectors designed for LS3, LS7, LSA, L76, L92, and L99 engines. These high-impedance injectors offer a flow rate of 660 cc/min (72 lbs/hr) at 58 PSI.

Each injector is precisely flow-matched to within 1% and individually numbered. The set includes all necessary o-rings for factory fitment. Fuel Injector Clinic provides Plug and Play GM ECU data for easy tuning. These injectors come with a lifetime warranty.

Show original supplier description

The Fuel Injector Clinic is303-0660h-sp is a set of eight high-performance, saturated, high-impedance fuel injectors engineered for LS3, LS7, LSA, L76, L92, and L99 engines. These injectors offer precise fuel delivery with a flow rate of 660cc/min (62 lbs/hr) at 3 bar (43.5 psi) and 72 lbs/hr (765cc/min) at 4 bar (58 psi) fuel pressure. Each injector in the set is individually numbered and flow-matched to within 1% of each other, with detailed results provided on an included flow sheet. The injectors are flow-tested and rated at 43.5 psi at 90 degrees F fuel temperature using CF-16B calibration fluid. Fuel Injector Clinic includes all necessary o-rings for factory application fitment. For aftermarket or non-standard setups, it is recommended to contact Fuel Injector Clinic prior to ordering to ensure proper fitment. These injectors are backed by a lifetime warranty against failure caused by defects in original manufacture. Plug and Play GM ECU data is available on the Fuel Injector Clinic website to aid in installation and tuning.

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

Brand	Fuel Injector Clinic
Part Number	is303-0660h-sp
Category	Air and Fuel

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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

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