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
Holley EFI LS1 LO-RAM BLK KIT W 102MM TB 120B INJ 300-620BK-120K
SKU: H00E 300-620BK-120K
Advanced — 4+ hours
Overview
This kit includes high-volume fuel rails with two sets of brackets for long or short fuel injectors, and necessary mounting hardware. It is designed for a 105 mm throttle body and operates optimally within a 3500-8000 RPM range.
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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 300-620BK-120K |
Videos
How to Install a Burst Panel on a Holley Lo-Ram Intake Manifold
HOW TO INSTALL HOLLEY ULTRA LO-RAM MANIFOLD KIT LT1 CORVETTE C7
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Introducing Holley’s Compact, High-Power, Lo-Ram LS Intake Manifolds
7700-RPM JUNKYARD 5.3L LS INTAKE TEST. HI RAM VS LOW RAM-WHICH HOLLEY LS INTAKE MAKES THE MOST HP?
How to prep And Install Holley High Ram in my LS Swaped Sonoma.
WATCH THIS BEFORE INSTALLING A HOLLEY HI RAM INTAKE ON YOUR LS ENGINE
Holley EFI Cast Intake Manifold Buyer’s Guide for GM LS and LT Engines
7,700-RPM 5.3L LS SCREAMER INTAKE TEST! BTR TRINITY VS HOLLEY LO-RAM-WHICH ONE MAKES MORE POWER?
How To Install A HOLLEY Hi Ram & Lo Ram
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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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