Holley EFI 300-621BK - Lo-Ram Manifold Kit - Ls1/2/6 Front-Feed

Ultra Lo-Ram Manifold Kit - LS1/2/6-Black Finish 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. 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. • 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 • Modular design allowing the use of front-feed plenum entry • Intake design facilitates custom inlet duct and throttle body placement • Low height to fit under a stock or mildly modified hood. • Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations • Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification • High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)