What to do with those pesky coils in such a confined space? In addition to PROFORM's LS Slant-Edge valve covers, PROFORM has designed an attractive way to lift your coils off your valve cover so you can see the Chevrolet emblem. A unique rail mounting system attaches to the threaded holes on the valve cover, and the individual coils attach to the rail so they can be mounted in multiple positions. All necessary hardware included. PROFORM coil brackets are not compatible with AC Delco coil #'s D585 and D581. These coil brackets will accommodate the equivalent MSD coils. Note: Stock spark plug wires are not long enough to work with this coil bracket. MSD's 13" spark plug wires, part no. 39849 are recommended. 13-15" wires are needed if making your own wires.Proform Sold As One Complete Kit of 2 Pieces 69521Specifications: Feature/Benefit Center to Center distance for ignition coil mounting holes: 2.800 inch Applications GM LS3 to LS7 Engines Material Steel Style Coil Pack Finish Stainless Steel Tool Type Piston Installation Tools Category Ignition Coil Description_ABR Bracket Kit Description_SHO Coil Bracket Kit Description_INV Coil Bracket Kit for LS Ignition Coils Description_DEF Ignition Coil Mounting Bracket Description_ASC Ignition Coil Bracket Kit for LS Ignition Coils Description_ASC Fits LS3 and LS7 Coils Description_LAB Ignition Coil Bracket Kit for LS Ignition Coils Description_LAB Fits LS3 and LS7 Coils Description_DES Ignition Coil Bracket Kit for LS Ignition Coils Description_DES Fits LS3 and LS7 Coils Description_EXT Ignition Coil Bracket Kit for LS Ignition Coils Description_EXT For LS3 and LS7 Coils Description_EXT Compatible with PROFORM's LS Slant-Edge Valve Covers Description_EXT All Hardware Included Description_EXT Sold As One Complete Kit of 2 Pieces Description_MKT What to do with those pesky coils in such a confined space? In addition to PROFORM's LS Slant-Edge valve covers, PROFORM has designed an attractive way to lift your coils off your valve cover so you can see the Chevrolet emblem. A unique rail mounting system attaches to the threaded holes on the valve cover, and the individual coils attach to the rail so they can be mounted in multiple positions. All necessary hardware included. PROFORM coil brackets are not compatible with AC Delco coil #'s D585 and D581. These coil brackets will accommodate the equivalent MSD coils. Note: Stock spark plug wires are not long enough to work with this coil bracket. MSD's 13" spark plug wires, part no. 39849 are recommended. 13-15" wires are needed if making your own wires.