1997-2007 Chevrolet Corvette Modular Ultra Lo-Ram EFI Manifold - For LS1/2/6 - Black - 300-621BK - Holley EFI

MSRP $1,032.99
Sale Price $897.99

Affirm - Available for US shipments only.

Stock Status: Available Please allow additional time for delivery. This item requires special handling or may ship directly from our supplier.

1997-2007 Chevrolet Corvette Modular Ultra Lo-Ram EFI Manifold - For LS1/2/6 - Black - 300-621BK - Holley EFI

MSRP $1,032.99
Sale Price $897.99

Affirm - Available for US shipments only.

Stock Status: Available Please allow additional time for delivery. This item requires special handling or may ship directly from our supplier.
Fitment & Application

Notes: See Additional Details Tab For Submodel Information. This part is legal for sale or use on Racing Use Only Vehicles

Also Fits: 1998-2002 Chevrolet Camaro

This product is not eligible for coupons, promotions or volume discounts.
Features/Benefits

Features/Benefits

  • HOLLEY 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.
  • 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 3/4"-16 o-ring ports (8 AN)
  • Engineered to Meet or Exceed OEM Specifications
  • OEM Part Number: 300-621BK
  • Associated Years: 1997-2007
  • Notes: See Additional Details Tab For Submodel Information. This part is legal for sale or use on Racing Use Only Vehicles
  • Item Quantity Size: 1 KT
  • Shipping Dimensions (LxWxH): 20.2in x 15.5in x 15.4in
  • Weight: 30.51 pounds
  • Tariff Code: 8409915085
  • Keywords: Air Intake, Engine Intake Manifold, Engine Parts, Restomod
Additional Details

Additional Details

  • Fits The Following Submodels For The Respective Years: Base, Stingray, Indianapolis 500 Pace Car, Silver Anniversary Edition, Collector's Edition, 35th Anniversary Edition, ZR-1, 40th Anniversary Edition, Grand Sport, Hardtop FRC, Z06, 50th Anniversary Edition, 50th Anniversary Edition Pace Car, 427 Limited Edition Z06, ZR1, Z06 Carbon, 427, Z51
  • Shop Retail Corvette Parts & Accessories
  • Shop Wholesale Corvette Parts & Accessories
  • Fits Year: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
  • Fits Generation: C5 Corvette, C6 Corvette

California Residents: See Prop 65 Warning

Welcome to Top Flight Automotive! Home of: