Holley 300-621BK Modular Ultra Lo-Ram EFI Manifold LS1/2/6

Holley 300-621BK Modular Ultra Lo-Ram EFI Manifold LS1/2/6Ultra Lo Ram Manifold Kit LS1 2 6 Black Finish Part Number: 300 621BK 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. The Holley LS1 2 6 Ultra Lo Ram

Ultra Lo-Ram Manifold Kit - LS1/2/6-Black Finish

Part Number: 300-621BK

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. 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.

Features and Benefits

• Intake design facilitates custom inlet duct and throttle body placement
• Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification
• 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.
• Low height to fit under a stock or mildly modified hood.
• 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
• Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
• High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)
• Modular design allowing the use of front-feed plenum entry

Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17"_x000D_ Front Feed Plenum Configuration w/105mm Throttle Body Adapter - 6.86"