Holley Hi-Ram Lower Manifold - GM LS3/L92 10291 3711Since 1938

3711Since 1938

1997-2002 Dodge Ram 3500 Van

without having to deal with traditional center zipper

1979-1991 Mercury Grand Marquis

Holley Hi-Ram Lower Manifold - GM LS3/L92 10291 3711Since 1938Plenum Top Gasket Type 3 32" Round O ring Cord Mounting Flange Gasket Type Standard LS3 Molded O Ring Port Size 2. 49" Height x 1. 21" Wide Runner Length 6. 50", As Cast Runner Cross Sectional Area Tapered 4. 25" to 2. 77 inThese parts should be used for the following applications: Racing Performance Street Rodder where hood restrictions are NOT a consideration. Mounting Flange Gasket Type Standard LS3 Molded O Ring Port Size 2. 49" Height x 1. 21"