HOLLEY LS1 LS2 LS6 SINGLE PLANE MID-RISE EFI INTAKE MANIFOLD

Holley EFI LS single plane mid-rise intake manifolds are great for your higher horsepower engine. Featuring cast aluminum construction, these manifolds are also great for centrifugal blower, turbocharged, or NOS mild power adder applications. The efficient casting design is lightweight--11.5 lbs.--with consistent wall thickness and strong mounting flanges.

The optimized runner layout and constant cross sectional area offer a broad torque curve, with the best vehicle performance from 2,500-7,000 rpm. The mid-rise design offers minimum carb mounting flange height--without sacrificing power--and is another plus for vehicles with minimum hood modifications. Holley EFI LS single plane mid-rise intake manifolds include zinc-plated hex head cap mounting bolts and washers, pipe plugs to block manifold vacuum and MAP sensor ports, and Viton® O-ring cylinder head mounting flange gaskets for an OEM-style seal.

Designed to fit cathedral port cylinder heads. This manifold will not work with factory fuel rails. Requires Holley fuel rails, part number 534-219.

Designed to fit cathedral port cylinder heads. This manifold will not work with factory fuel rails. Requires Holley fuel rails, part number 534-219.

Holley Performance Products, Inc. products are warranted to be free from defects in material and workmanship for a period of 90 days from the date of purchase, except Avenger series carburetors, which carry a lifetime warranty on parts and a one-year warranty on labor. Any Holley deep cell battery also carries a one-year warranty. For select carburetors and superchargers, there will be a core charge. If the part qualifies, there will be a letter and a call tag included in the box from Holley.

The part must be returned to Holly, and if it is in acceptable condition, Holly will issue credit directly to the customer. In addition, Holley Performance Products, Inc.'s limited warranty specifically does not apply to products which have been modified or altered in any way, subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion or faulty repair, or used in applications other than those recommended by Holley Performance Products, Inc. This warranty does not warrant and disclaims all liability for products used in racing activities and/or applications, other than those specifically recommended by Holley Performance Products, Inc.