{"product_id":"fuel-injector-clinic-1000cc-high-impedance-injector-set-for-1999-2006-gm-4-8l-5-3l-and-6-0l-truck-engines","title":"Fuel Injector Clinic 1000cc High-Impedance Injector Set for 1999–2006 GM 4.8L, 5.3L and 6.0L Truck Engines","description":"\u003cp\u003e\u003cstrong\u003eFuel Injector Clinic 1000cc High-Impedance Injector Set for 1999–2006 GM 4.8L, 5.3L and 6.0L Truck Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: IS304-1000H\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Fuel Injector Clinic IS304-1000H is a matched set of eight high-impedance fuel injectors for 1999–2006 GM truck applications equipped with 4.8L, 5.3L, or 6.0L engines.\u003c\/p\u003e\n\u003cp\u003eEach injector flows 1000 cc\/min at 43.5 psi and approximately 1040 cc\/min at the GM original-equipment fuel pressure of 58 psi. The set provides substantial fuel capacity for forced-induction, E85, and other higher-output combinations while retaining the linearity, short-pulse repeatability, and injector characterization required for controlled startup, idle, and part-throttle operation.\u003c\/p\u003e\n\u003cp\u003eThese injectors use USCAR\/EV6 electrical connectors rather than the original GM\/Delphi injector-harness connectors. The standard package includes eight solder-in pigtails. Optional plug-and-play adapters are available for customers who prefer not to modify the original harness.\u003c\/p\u003e\n\u003cp\u003eFuel Injector Clinic individually serial-numbers and tests each injector using its Data Match Technology process. The supplied Data Match sheet includes flow and latency information for accurate ECU configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Set of eight matched port-fuel injectors\u003cbr\u003e• Designed for 1999–2006 GM 4.8L, 5.3L, and 6.0L truck-engine applications\u003cbr\u003e• 1000 cc\/min nominal flow rate at 43.5 psi or 3 bar\u003cbr\u003e• Approximately 85 lb\/hr at 43.5 psi\u003cbr\u003e• Approximately 1040 cc\/min at 58 psi or 4 bar\u003cbr\u003e• Approximately 100 lb\/hr at 58 psi\u003cbr\u003e• Saturated, high-impedance electrical design\u003cbr\u003e• USCAR\/EV6 injector connectors\u003cbr\u003e• Suitable for gasoline and E85 applications\u003cbr\u003e• Individually serial-numbered injectors\u003cbr\u003e• Matched using Fuel Injector Clinic Data Match Technology\u003cbr\u003e• GM ECU data available from Fuel Injector Clinic\u003cbr\u003e• Application-specific O-rings included\u003cbr\u003e• Covered by Fuel Injector Clinic’s lifetime limited warranty for the original purchaser\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Eight Fuel Injector Clinic 1000 cc\/min high-impedance injectors\u003cbr\u003e• \u003cstrong\u003ePGTUSC8\u003c\/strong\u003e — Set of eight USCAR\/EV6 injector connectors with solder-in pigtails\u003cbr\u003e• Application-specific upper and lower O-rings\u003cbr\u003e• Fuel Injector Clinic Data Match sheet with injector characterization information\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlow Rating\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 1000 cc\/min at 43.5 psi differential fuel pressure\u003cbr\u003e• Approximately 85 lb\/hr at 43.5 psi differential fuel pressure\u003cbr\u003e• Approximately 1040 cc\/min at 58 psi differential fuel pressure\u003cbr\u003e• Approximately 100 lb\/hr at 58 psi differential fuel pressure\u003cbr\u003e• Flow tested using CF-16B calibration fluid at approximately 90°F\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Saturated, high-impedance injector design\u003cbr\u003e• Compatible with conventional saturated injector drivers\u003cbr\u003e• No external injector resistor pack required in supported applications\u003cbr\u003e• USCAR\/EV6 electrical connection\u003cbr\u003e• Factory GM\/Delphi injector-harness connectors require conversion\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInjector Characterization\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Each injector is individually serial-numbered\u003cbr\u003e• Injector-set results are supplied on a Fuel Injector Clinic Data Match sheet\u003cbr\u003e• Flow and latency information is provided for ECU configuration\u003cbr\u003e• GM ECU data is available from Fuel Injector Clinic\u003cbr\u003e• Injector data must be entered correctly for the ECU, fuel pressure, and fuel being used\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003ePGTUSC8\u003c\/strong\u003e solder-in USCAR\/EV6 pigtails are included with the standard injector set\u003cbr\u003e• \u003cstrong\u003ePADPUtoGM8\u003c\/strong\u003e plug-and-play adapters are available as an optional configuration\u003cbr\u003e• The optional adapters connect the USCAR\/EV6 injectors to the original GM\/Delphi injector-harness connectors without cutting the factory harness\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• This injector set is designed for 1999–2006 GM truck applications equipped with 4.8L, 5.3L, or 6.0L engines.\u003cbr\u003e• This listing is for one matched set of eight injectors.\u003cbr\u003e• The injectors do not directly connect to the original GM\/Delphi injector-harness plugs.\u003cbr\u003e• The included USCAR\/EV6 pigtails may be properly spliced into the existing harness to replace the original injector connectors.\u003cbr\u003e• Optional \u003cstrong\u003ePADPUtoGM8\u003c\/strong\u003e adapters allow installation without cutting or modifying the original injector harness.\u003cbr\u003e• Application-specific O-rings are included for the listed factory application.\u003cbr\u003e• Aftermarket fuel rails, intake manifolds, injector bungs, or unusual component combinations may change the required injector length, O-ring size, or electrical connection.\u003cbr\u003e• Confirm fitment before ordering when using non-factory rails, intake manifolds, or injector-harness components.\u003cbr\u003e• The published 1000 cc\/min rating is measured at 43.5 psi differential fuel pressure.\u003cbr\u003e• At the GM factory pressure of 58 psi, the injectors flow approximately 1040 cc\/min.\u003cbr\u003e• Injector flow changes with differential fuel pressure; ECU configuration must reflect the actual base pressure and manifold-pressure reference strategy.\u003cbr\u003e• Injector characterization data must be entered into the ECU rather than relying only on the nominal flow rating.\u003cbr\u003e• Fuel-system capacity, pump selection, regulator capacity, line sizing, filtration, and electrical supply must be adequate for the intended fuel and power level.\u003cbr\u003e• Power capability is not specified because required injector capacity depends on fuel type, base pressure, brake-specific fuel consumption, duty-cycle target, and engine configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions and Competition-Use Notice\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eUnless specifically identified as emissions-legal for the applicable vehicle and application, this product is intended for sanctioned competition, off-road, or other non-emissions-controlled use. Installation or use on an emissions-controlled vehicle operated on public roads may violate federal, state, or local law. The purchaser and installer are responsible for confirming and maintaining compliance with all applicable emissions and vehicle-use regulations.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fuel Injector Clinic","offers":[{"title":"Solder-In USCAR\/EV6 Pigtails — Included; IS304-1000H_\u0026_PGTUSC8","offer_id":46273744437305,"sku":null,"price":762.0,"currency_code":"USD","in_stock":true},{"title":"Plug-and-Play GM\/Delphi Adapters — No Splicing; IS304-1000H_\u0026_PADPUTOGM8","offer_id":46273744470073,"sku":null,"price":852.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/8512\/9017\/files\/IS304-1000H.webp?v=1785768158","url":"https:\/\/rad-power.com\/products\/fuel-injector-clinic-1000cc-high-impedance-injector-set-for-1999-2006-gm-4-8l-5-3l-and-6-0l-truck-engines","provider":"RAD","version":"1.0","type":"link"}