FIC FUEL INJECTOR CLINIC IS303-660H Injectors Gm Lsa Highz 660CC L76 L92 L99

( Brand: Fic Fuel Injector Clinic ), ( Manufacturer Part Number: IS303-660H ), ( Engine Codes: Ls3 Ls7 L76 L92 L99 ), ( Type: Fuel Injector ), ( Vehicle Make: Gm ), ( Universal Fitment: No ), ( Fuel Type: Gasoline ), ( Performance Part: Yes )

Review FIC FUEL INJECTOR CLINIC 660cc Injectors Gm Lsa L76 L92 L99 Highz fits LS3 LS7

FIC Fuel Injector Clinic IS303-660H: High-Performance Injectors for GM LS Engines

The FIC Fuel Injector Clinic IS303-660H is a remarkable addition to any high-performance vehicle equipped with GM LS3, LS7, LSA, L76, L92, or L99 engines. This injector offers a 660cc capacity, delivering an impressive fuel flow rate, ensuring maximum power and efficiency for your vehicle.

Manufactured by Fuel Injection Technology (FIC), this injector is designed to meet the demands of serious racers and enthusiasts who seek unparalleled performance. The IS303-660H injector is built with a robust housing and a high-quality nozzle, ensuring longevity and reliability even under extreme conditions.

One of the standout features of the FIC Fuel Injector Clinic IS303-660H is its high-z design. This feature allows for an increased fuel pressure rating, providing superior atomization and combustion performance compared to standard injectors. The high-z design also reduces the risk of fuel leakage, ensuring cleaner and more efficient operation.

The IS303-660H injector is engineered with a 303 stainless steel body and a billet aluminum housing, offering excellent heat dissipation properties. This design ensures that the injector remains cool and performs consistently, even during prolonged high-load conditions.

The FIC Fuel Injector Clinic IS303-660H is a direct replacement for the factory injectors on supported GM LS engines. Its plug-and-play design makes installation quick and easy, and it comes with a comprehensive warranty to give you peace of mind.

In conclusion, the FIC Fuel Injector Clinic IS303-660H is a top-tier fuel injector that delivers exceptional performance, reliability, and efficiency. Whether you're looking to boost your vehicle's power output, improve its fuel economy, or simply upgrade to a more durable and efficient fuel system, the IS303-660H is an excellent choice. Upgrade your vehicle today with the FIC Fuel Injector Clinic IS303-660H, and experience the difference that high-performance fuel injectors can make.

The FIC Fuel Injector Clinic IS303-660H 660cc Injectors for GM LS3, LS7, LSA, L76, L92, and L99 high-performance engines have both advantages and disadvantages. Below is a list of the pros and cons to help you make an informed decision.

1. High Flow Rate: With a flow rate of 660cc, these injectors provide an excellent fuel supply for high-performance engines, ensuring a powerful and responsive engine.

2. Compatibility: These injectors are compatible with various GM high-performance engines, making them a versatile choice for many applications.

3. Quality: FIC is a reputable brand known for producing high-quality fueling components, so you can expect reliable performance from these injectors.

4. Rebuildable: The injectors can be rebuilt, making them a cost-effective option in the long run, especially for those who frequently modify their engines.

1. Price: Compared to OEM injectors, FIC injectors can be more expensive, which may be a concern for budget-conscious buyers.

2. Complexity: Rebuilding injectors can be a complex process, requiring specific tools and knowledge. This may discourage some users from rebuilding their injectors themselves.

3. Potential Fitment Issues: While the injectors are designed to fit various engines, there may be instances where slight modifications are necessary for a perfect fit.

4. Aftermarket Support: Since FIC is not an original equipment manufacturer (OEM), there might be fewer resources and support available compared to OEM parts.

The FIC Fuel Injector Clinic IS303-660H 660cc Injectors offer high performance, compatibility with various engines, and the potential for long-term cost savings through rebuildability. However, they may be more expensive than OEM injectors and require some expertise for rebuilding. If you're comfortable with the potential costs and challenges, these injectors could be an excellent choice for your high-performance engine setup. If you're looking for something more affordable or easier to install, you might want to consider OEM injectors or other aftermarket options. Ultimately, the decision depends on your specific needs, budget, and skill level.

Details:

These Injectors utilize the latest technology and provide great linearity short pulse width repeatability. Each Injector within each set is individually numbered and results for are listed on a detailed flow sheet included with. Fuel Injector Clinics high performance Fuel Injectors are flow tested and rated at 43.5psi 3Bar 90 degrees F temperature using CF-16B calibration fluid. Saturated / High Impedance Injectors.

Drop in plug fitment. Fuel Injector Clinics high performance Fuel Injector sets are precisely flow matched to within 1%. 660cc FIC Fuel Injector Clinic Injectors GM LS3 LS7 LSA L76 L92 L99 HighZ, FREE 2 DAY SHIPPING, PLUG N PLAY, LS3, LS7, LSA, L76, L92, Set: 8x660cc/min 62lbs/hr at 3 bar 43.5psi Fuel pressure and 72lbs/hr 765cc/min OE 58psi 4 bar. Fuel Injector Clinic Injectors are set up to and include all o-rings needed fit the factory application for listed vehicle.

Superior short pulse width control and tight manufacturing tolerances make these Injectors easy to tune provide great provability.

part #: is303660h price

• $669.34

specifications carfuelinjector:

• for models: Ls3, Ls7
• brand: Fic Fuel Injector Clinic
• mpn: Is303-660h
• engine codes: Ls3 Ls7 L76 L92 L99
• type: Fuel Injector
• vehicle make: Gm
• universal fitment: No
• fuel type: Gasoline
• performance part: Yes

returns carFuelInjector:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

seller carFuelInjector:

• rating: 98.8%
• # reviews: 34434
• city: Wheeling, Illinois

shipping carFuelInjector:

• service: FedEx 2Day
• type: Fixed
• carrier: FedEx
• cost: $0.00
• class: Expedited
• transit: 2-4 Days

payments carFuelInjector:

• wallet: Google-pay
• other
• credit card: Diners-club

offer carFuelInjector:

• quantity: 1
• started: July 8, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock

general carFuelInjector:

• condition: New other see details
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

Fic Fuel Injector Clinic IS303-660H Is Similar To:

• Fuel Injector Clinic FIC Injectors 445cc Civic D15 D16 D16z6 D16y8 H22 H22a (51.6% similar) Honda/aura Fuel Injector Clinic Injector set: 4X445CC saturated/high impedance ball & seat Injectors. Each Injector within each set is individually numbered and results for each Injector are listed on a detailed flow sheet included with the set. These Injectors utilize the latest technology and ...(March 23rd, 2014)
• FIC 1050cc MITSUBISHI DSM OR EVO 8 9 FUEL INJECTOR CLINIC SET LOW-Z IS126-1050 (19.8% similar) Fic 1050CC Mitsubishi dam or Eco 8/9 Fuel Injector Clinic set low-z IS126-1050PART #: IS126-1050 Mitsubishi dam/Eco Injector set: 4 x 1050CC custom peak & hold / low impedance ball & seat Injectors. Fuel Injector Clinic Injectors are set up to fit and include all o-rings needed. Fuel Injector Clinic...(April 3rd, 2014)
• FIC 2150CC X4 Dodge SRT-4 BlueMax Fuel Injector Clinic Injector Set IS151-2150H (42.7% similar) 5 psi, 2485CC/MIN 58 psi this massive Injector is in a class of its own when low end throttle response and short pulse width control is required. Great Injector for E85 applications. Includes pigtails PG DEN4 or add plug & play adaptors PADPDTOU4. These Injectors do not require a resistor pack or ...(April 10th, 2014)
• FIC 775cc WRX STI 07 Topfeed Fuel Injector Clinic High-Z IS175-0775H (36.6% similar) These are in perfect condition. As you can see they are perfectly matched. I used these for 3 months before upgrading to larger Fic Injectors. They all flow 788CC. Posted with mobile. Fic uses brand new bosch Injectors. The only problem with using a bosch Injector is that it doesn't use the same ...(March 7th, 2014)
• FIC 950ccX 6Nissan Skyline R33 GTR Fuel Injector Clinic Injector IS185-950HSP (43.2% similar) Superior short pulse width control and tight manufacturing tolerances make these Injectors easy to tune and provide great provability. Every Injector is covered against failure caused by de. Each Injector within each set is individually numbered and results for each Injector are listed on a ...(April 9th, 2014)
• FIC 365cc X 6 Nissan 350Z 370Z Fuel Injector Clinic Injector Set IS186-365H (47.2% similar) These Injectors utilize the latest technology and provide great linearity and short pulse width repeatability. Includes pigtails PG USC6 or add plug & play adaptors PADPUTOD6 Fuel Injector Clinic Injector sets are precisely flow matched to within 1%. Each Injector within each set is individually ...(April 9th, 2014)
• FIC 1050c x4 SP BMW E30 M3 Fuel Injector Clinic Injector Set High-Z IS803-1050 (46.3% similar) Fic 1050C x4 Sp BMW E30 m3 Fuel Injector Clinic Injector set high-z IS803-1050 BMW E30 m3 Fuel Injector Clinic Sp line Injector set: 4X1050CC saturated / high impedance ball & seat Injectors. Plug & play fit to oem harness. These Injectors include diffuse plate and Fuel Injector Clinic data match ...(April 10th, 2014)
• Is167-1000h Audi Fuel Injector Clinic Fic Set For Vw Cyl (44.3% similar) This Injector set is precisely matched using Fuel Injector Clinics proprietary data match technology. New condition...(May 20th, 2022)
• 1000cc Fic Fuel Injector Clinic Injectors Honda Civic D16 B16 B18 B20 H22 High Z (54.9% similar) The Fic Fuel Injector Clinic IS115-1000H is in new condition...(September 9th, 2022)
• Fuel Injector Clinic Fic.402-1440 Fic 1440cc Injectors For 1987-2004 Mustang Gt 1993-1998 Cobra Is402-1440h (48.7% similar) This Injector set is precisely matched using Fuel Injector Clinics proprietary data match technology. Every Injector is covered against failure caused by defects in original manufacture our lifetime warranty. Often times associated items may be photographed with a product and the manufacturer will ...(October 18th, 2023)
• Fuel Injector Clinic Is153-1200h Fic 1200cc For Dodge Hemi Srt-8 5.7 Hellcat Set (46.3% similar) With a flow rate of 1200CC, these Injectors from the renowned brand will improve your vehicles Fuel delivery system. Ensure your vehicle runs at peak performance with this Fuel Injector set...(January 21st, 2024)