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Holley LS Modular Lo-Ram EFI Intake Systems
Intake Manifolds, Dual Injection, Lo-Ram EFI, Cathedral Port Heads, Standard Deck, 105mm Bore, Aluminum, Satin Finish, Chevy, LS, 4.8-6.0L, Each
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Estimated Ship Date from Georgia: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
300-624
Part Type:
Product Line:
Summit Racing Part Number:
HLY-300-624
UPC:
090127080061
Cylinder Head Configuration:
Cathedral Port LS1/LS2/LS6
Fuel Injection Style:
Multi-port
Intake Section Included:
Complete
Throttle Body Bore Size:
105mm
Engine Block Deck Height:
Standard deck
Injectors Included:
No
Multi-Port Fuel Rails Included:
Yes
EGR:
No
Aftermarket Fuel Rail Required:
Yes
Throttle Body Included:
No
Supplemental Bosses Cast-In:
No
Supplemental Bosses Machined:
No
Runners Included:
No
Runners Removable:
No
Plenum Material:
Aluminum
Plenum Finish:
Satin
Base Material:
Aluminum
Base Color:
Satin
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Dual injector intake manifold provides two injectors per cylinder for hi-volume fuel demands, flexible fuel supply strategies, and dual-fuel capability.
Holley LS Modular Lo-Ram EFI Intake Systems
Holley LS Modular Lo-Ram EFI intake systems have a top-feed plenum entry configuration, designed to allow the currently available Hi-Ram 105mm plenum tops to be fitted to a low-profile base intake manifold. The short runner, low-profile base intake manifold intended for forced induction applications and was conceived to package with an air-to-water plenum-mounted intercooler—with a shorter overall height than is possible with other existing intake manifolds. Using a modular design, the top-feed plenum configuration with 105mm top keeps the overall height at just 9.07 in.!
Additional features and specs include:
* Cast aluminum construction
* Modular design allows the use of the included top-feed plenum entry
* Designed for GM LS Gen III and IV engines equipped with GM LS1/LS2/LS6 (cathedral port) cylinder heads
* Will also work with OE or aftermarket cylinder heads
* Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7,000 to 8,000 rpm, depending on application
* Low height to aid the packaging of a plenum-mounted air-to-water intercooler in a top-feed configuration (or to fit under a stock or mildly modified hood in the front-feed configuration)
* High-volume fuel rails and mounting hardware included with 3/4 in.-16 O-ring ports (8 AN)
* Fuel rail kits come with two sets of brackets—a set for long (usually standard length) fuel injectors, and a set for short (such as Pico or LS7) fuel injectors
Applications
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