Your Small Town Parts Store With More!
×
-9%
  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Added Value

    Performance matched parts

  • Nationwide Delivery

    Economy shipping

Holley 300-621BK Modular Ultra Lo-Ram Efi Manifold Ls1/2/6

2 sold in last 8 days
Holley
ds_BBVL_300-621BK
Engine Intake Manifold
$1,528.59 $1,386.51
$1,386.51

customers are viewing this product
Holley 300-621BK Modular Ultra Lo-Ram Efi Manifold Ls1/2/6

The Holley LS1/2/6 Ultra 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 Ultra 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 lower overall height to fit under a stock or mildly modified hood. The 300-621 Ultra Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. 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.

Specifications:

Description_ASC Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17" Front Feed Plenum Configuration w/105mm Throttle Body Adapter - 6.86"
Description_DEF Engine Intake Manifold
Description_DES Holley Modular Ultra Lo-Ram EFI Manifold LS1/2/6
Description_FAB Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
Description_FAB Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
Description_FAB With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used
Description_FAB Modular design allowing the use of front-feed plenum entry
Description_FAB Intake design facilitates custom inlet duct and throttle body placement
Description_FAB Low height to fit under a stock or mildly modified hood.
Description_FAB Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
Description_FAB Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification
Description_FAB High volume fuel rails and mounting hardware included with ┬╛"-16 o-ring ports (8 AN)
Description_EXT Holley EFI Modular Lo-Ram Intake Manifold; Upper; Front Feed Cast Black; 6.86 in. Height w/Throttle Body Adapter; For Use w/GM/LS1/LS2/LS6;
Description_INV Lo-Ram Manifold Kit - LS1/2/6 Front-feed
Description_SHO Intake Manifold
Description_MKT The Holley LS1/2/6 Ultra 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 Ultra 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 lower overall height to fit under a stock or mildly modified hood. The 300-621 Ultra Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. 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.
Engine Make/Size GM LS1/LS2/LS6
Injector Quantity Single
Product Type Intake Manifold
Sale Category Air and Fuel Delivery
WARNING CA Proposition 65 No
Flange Style EFI
Fuel System Type EFI
RPM Power Band 3500-8000 RPM
RPM Range 7000-8000
Number of Carbs None; For Fuel Injection
Construction Cast
Front Height 6.86" height with throttle body adapter
Manifold Type Ultra Lo-Ram
Warranty Limited 90 Day
Color Black
Usage Street/Hi-Performance
Position Upper
Emission Code 3
Finish Black
Inlet Location Front
Recommended Use Forced Induction
Brand Holley EFI
Engine GM LS1/LS2/LS6
Length 16.0000
Width 15.0000
Height 20.0000
Weight 31.0000
Read More
Read Less
We use cookies to improve your experience on our website. Read about how we use cookies in our Privacy Policy. By browsing this website, you agree to our use of cookies. privacy policy
accept

Your cart

×