Skip to content
Now offering free shipping on all orders over $300! See details.
Now offering free shipping on orders over $300!

Pricing Notice

While we strive to keep our website pricing accurate and up to date, occasional delays in updates may occur when manufacturers change their prices. This means the price shown online may differ from the current price. We recommend contacting us to confirm pricing before placing your order, as we may not be able to honor outdated prices.

Special Order

This item is made to order and may require additional processing time before shipping.

Holley Modular Lo-Ram EFI Manifold LS1/2/6 300-620BK

Original price $1,143.95 - Original price $1,143.95
Original price
$1,143.95
$1,143.95 - $1,143.95
Current price $1,143.95

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

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 manifolds will work with OE or aftermarket cylinder heads. 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-entry configuration. The 300-620 plenum entry configuration is designed to allow the included Hi-Ram 105 mm plenum top to be fitted to a low-profile base intake manifold. 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:

  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
  • Modular design allowing the use of the included plenum entry
  • 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 _Ó-16 o-ring ports (8 AN)

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Shipping information

Use this text to share information about your product.

Returns & warranty

Use this text to share information about your product.

Related categories

Warehouse Sale

Our most anticipated sale of discontinued items has finally arrived! While supplies last.

Open Box Deal

Their return, your reward! Starting today, shop new exclusive products for less.

Free Shipping

When you spend $50 or more

Here to Help

Get in touch with us 7 days a week

Store Pickup

Pick up your order yourself, for free

Easy Exchanges

Return or exchange within 60 days

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare