Holley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold Kit
Holley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold Kit
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Holley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold Kit

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Key item features

  • Engine Compatibility: Designed for GM LS Gen III and IV engines with LS1/2/6 (cathedral port) cylinder heads, compatible with OE or aftermarket heads.
  • Performance Focus: Optimized for forced induction (supercharged or turbocharged) applications, achieving peak power between 7000-8000 rpm.
  • Fuel System: Features dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capability, and 8 AN o-ring ports.
  • Compact Design: Low-profile, top-feed configuration aids in packaging plenum-mounted air-to-water intercoolers or fitting under stock/modified hoods.
  • Injector Versatility: Includes two sets of fuel rail brackets to accommodate both long (standard length) and short (Pico, LS7) fuel injectors.
  • Finish Options: Available in both as-cast satin and black powder-coat finishes.
  • Installation Inclusions: Kit comes complete with all necessary sealing o-rings, plugs, and fasteners for installation.
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Current price is $1,197.95
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Columbus, 43215
Arrives between Feb 20 - Feb 24
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Sold and shipped by Southwest Speed Inc.
3.75 stars out of 5, based on 4 seller reviews(3.8)
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Comparison Chart:
Vehicle makeGMHolley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitRAMHolley EFI 300-621 Holley Modular Lo-Ram EFI Manifold LS1/2/6GMHolley EFI 300-624BK Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitFord, RAMHolley EFI 300-242BK Engine Intake ManifoldGMHolley Ultra Lo-Ram Manifold Kit and Port Injection Fuel Rails - GM Gen V LTGMHolley 300-682 Ultra Lo-Ram Manifold Kit with Burst Panel Single Injector SatinGMHolley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold KitGMHolley 300-951 Holley Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block ChevyFordHolley EFI 300-910 Hi-Ram EFI Intake Manifold Coyote - As Cast FinishGMHolley Ultra Lo-Ram Manifold Kit - GM Gen V LT
Vehicle modelLS Gen III and IVHolley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitLS1Holley EFI 300-621 Holley Modular Lo-Ram EFI Manifold LS1/2/6LS1Holley EFI 300-624BK Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold Kit351WHolley EFI 300-242BK Engine Intake ManifoldGen V LT1Holley Ultra Lo-Ram Manifold Kit and Port Injection Fuel Rails - GM Gen V LTLS Gen III and IVHolley 300-682 Ultra Lo-Ram Manifold Kit with Burst Panel Single Injector SatinLS1/2/6Holley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit-Holley 300-951 Holley Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block ChevyCoyoteHolley EFI 300-910 Hi-Ram EFI Intake Manifold Coyote - As Cast FinishGen V LT1Holley Ultra Lo-Ram Manifold Kit - GM Gen V LT
Vehicle fitment typeSpecificHolley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitSpecificHolley EFI 300-621 Holley Modular Lo-Ram EFI Manifold LS1/2/6SpecificHolley EFI 300-624BK Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitSpecificHolley EFI 300-242BK Engine Intake ManifoldSpecificHolley Ultra Lo-Ram Manifold Kit and Port Injection Fuel Rails - GM Gen V LTSpecificHolley 300-682 Ultra Lo-Ram Manifold Kit with Burst Panel Single Injector SatinSpecificHolley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold KitUniversalHolley 300-951 Holley Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block ChevySpecificHolley EFI 300-910 Hi-Ram EFI Intake Manifold Coyote - As Cast FinishSpecificHolley Ultra Lo-Ram Manifold Kit - GM Gen V LT
MaterialCast IronHolley EFI 300-624 Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitCast IronHolley EFI 300-621 Holley Modular Lo-Ram EFI Manifold LS1/2/6Cast IronHolley EFI 300-624BK Dual Fuel Injector LS1 Lo-Ram Top-Feed EFI Intake Manifold KitCast aluminumHolley EFI 300-242BK Engine Intake ManifoldAluminumHolley Ultra Lo-Ram Manifold Kit and Port Injection Fuel Rails - GM Gen V LTPlasticHolley 300-682 Ultra Lo-Ram Manifold Kit with Burst Panel Single Injector SatinCast IronHolley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold KitAluminumHolley 300-951 Holley Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block ChevyCast IronHolley EFI 300-910 Hi-Ram EFI Intake Manifold Coyote - As Cast FinishSatinHolley Ultra Lo-Ram Manifold Kit - GM Gen V LT
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