Holley EFI 300-680 GM LS3 L92 Cast Lo-Ram Intake Manifold Silver Finish

The Holley LS3 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS3/L92 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 with peak power at 7000-8000 rpm depending on the application. The Ultra Lo-Ram plenum flange has a 105 mm opening to work with 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 in the front configuration. The LS3 Ultra Lo-Ram is constructed to provide a very low profile modular intake manifold suitable for fabrication of special throttle body adapters or inlet ducts for custom installations. Available with single or dual injector provisions and a burst panel flange options. 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.

• Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads
• Engineered 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 in the configuration
• Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
• Clears C6 Corvette cowls and hoods without modification
• Available with single or dual injector provisions and a burst panel flange.
• High volume fuel rails for eight and sixteen injector configurations. Mounting hardware included with 3/4-16 O-ring ports (8 AN)
• Billet options for the top and throttle body adapters are available separately.
  • Engine - GM LS3/L92
  • Finish - Silver
  • Flange Style - EFI
  • Front Height - 6.86" height with throttle body adapter
  • Fuel System Type - EFI
  • Injector Quantity - Single
  • Inlet Location - Front
  • Manifold Type - Ultra Lo-Ram
  • Product Type - Intake Manifold
  • Recommended Use - Forced Induction
  • RPM Power Band - 3500-8000 RPM