Product images and videos 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.
Air and Fuel› Intake Manifolds and Components
Holley
KIT, INT. MANIFOLD, LS1 LO-RAM, BLACK
SKU: H00E 300-624BK
Moderate — 2–4 hours
Overview
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Part #: 300-624BK
The Holley LS1/2/6 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads.
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
- Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm, depending on the application
- Dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capable, 8 AN o-ring ports
- 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
- Available with both as-cast satin and black power-coat finishes
Black Finish
Vehicle Symptoms
- Engine feels restricted above 5000 RPM
- High intake air temperatures during boost
- Need more fuel delivery for high horsepower
- Stock manifold not clearing aftermarket intercooler
Relevant Conversations
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- How to install Holley Lo-Ram on LS6
- Holley 300-624BK review
- LS intake manifold for 1000+ hp
- Holley Lo-Ram install issues
- Aftermarket intake manifold for cathedral port heads
- Low profile intake for LS swap clearance
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 | Holley |
| Part Number | H00E 300-624BK |
| Weight | 29.3 lb |
Videos
HOW TO INSTALL HOLLEY ULTRA LO-RAM MANIFOLD KIT LT1 CORVETTE C7
How to Install a Burst Panel on a Holley Lo-Ram Intake Manifold
How To Install A HOLLEY Hi Ram & Lo Ram
Holley EFI Cast Intake Manifold Buyer’s Guide for GM LS and LT Engines
7700-RPM JUNKYARD 5.3L LS INTAKE TEST. HI RAM VS LOW RAM-WHICH HOLLEY LS INTAKE MAKES THE MOST HP?
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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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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