Holley now has plenum top options for those of us with limited room in the front of our engine bays. The side mount plenum tops resemble the older Ford EFI manifolds and will allow you to mount the throttle body on the side. This will allow for easier fabrication for boosted applications or for just a different look on your Hi-Ram manifold. Cast aluminum construction designed to mount on our existing Hi-Ram manifold bases. Available in a cast or black finish. Models for both LS and Ford 5.0 throttle body patterns in 95mm and 105 mm sizes. Designed For Side Mounted Throttle Bodies Allows Room For Designing Boosted Applications 4 mm Aluminum Construction 95 mm And 105 mm Sizes Available Additional Attributes: GTIN: 00090127066393 WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Packaging: Quantity of Each: Package UOM: Dimension: 19.6000 x 15.3500 x 5.3200 inches