SKU: 36755111943

Base Manifold and Rail Kit for Lo-Ram 300-620BK - 300-600BK

Sale price$314.98 Regular price$349.98
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Description

Base Manifold and Rail Kit for Lo-Ram 300-620BK - 300-600BKOverview: 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. The 300 600BK is the lower manifold in the 300 620BK complete kit. Offering this separately allows you to select your components individually as you build your system. The Lo Ram intake

Overview:

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. The 300-600BK is the lower manifold in the 300-620BK complete kit. Offering this separately allows you to select your components individually as you build your system. The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112-581 or similar models. The base intake manifold is designed with a low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration. The short runner, low-profile base intake manifold intended for forced induction applications was conceived to package with an air to water plenum mounted intercooler with a shorter overall height than possible with other existing intake manifolds. The 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.

Features:

  • Base manifold and rail kit for Low-Ram 300-620BK allows you to select your components individually as you build your intake system
  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Low height to aid the use of a plenum mounted air-to-water intercooler in a top-feed configuration
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application
  • High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Color Black
Emission Code 3
Engine GM Small Block Gen III/IV (LS Based)
Finish Cast
Fuel System Type EFI
Manifold Type Lo-Ram
Product Type Manifold
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36755111943

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Dolores DelGuercio
Boise, US
★★★★★ 5
Good quality
Item Package Quantity: 1
My car is old this product does a very good job.
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Reviewed in the United States on May 3, 2026
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Kim
Cuba, US
★★★★★ 5
It really works!
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This worked exactly as it says, and turned what looked like an old vehicle to a shiny new one. The only ugly thing about the car was the cloudy headlights. Everything else looked great. It really ages a car when it has cloudy headlights. There was no rubbing or buffing, just easy wiping and drying in one more wipe. The video was very helpful on the website.
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Reviewed in the United States on February 14, 2026
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Keyghan
Whiting, US
★★★★★ 4
Value for money
Item Package Quantity: 1, Item Package Quantity: 1
This headlight restoration kit was perfect, instructions were easy to read and follow. It restored my headlights looking nearly new. I give a 4 star because they got dirty again In a couple months, overall the value of this product compared to the price is perfect. First photo is before, second Is after.
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Reviewed in the United States on February 9, 2026
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Alexander Jeter
Waukegan, US
★★★★★ 5
Really good!
Size: 128 Fl Oz (Pack of 1)
This is the best, it removes 90% of dirt, it is multi purpose I love it and and if the business goes well I’ll keep buying it!
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Reviewed in the United States on April 13, 2026
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Denton Weimer
Pawtucket, US
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ “That ‘New Car Smell’ in a Bottle”
Size: 128 Fl Oz (Pack of 1)
I’ve been using Chemical Guys Interior Cleaner on my 2015 Subaru, and there’s something about this one that really nails that clean-car smell while doing everything you need: 🧼 Works Everywhere • Safely cleans seats, head unit, center console, dash, and door panels—all without leaving greasy residue. • Gentle enough for plastics and screens, tough enough to handle spills and grime. 🚗 That Fresh Car Smell • Leaves behind a subtle, factory-fresh scent—not overpowering or artificial. • Every time I get in, it feels like a brand-new ride. 💡 Easy to Use • A quick spray and wipe is all it takes. • No staining, no residue—just smooth, clean surfaces. ⸻ ✅ Bottom Line: If you care about that clean, fresh smell and want a product that actually cleans everything in your car interior, this is it. Fresh cabin feel with no greasy finish—perfect for a daily driver or family ride. Highly recommend!
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