Holley Aluminum Valve Cover Adapter Plate For Small Block Chevy LS Polished Pair. BRAND NEW IN BOX. Not for sale or street use in CA & CARB states. Legal for Racing Use Only. For Small Block Chevy to LS. These adapter plates feature an integrated oil fill and are pre-threaded for PCV ventilation fittings. Simply install the LS valve cover adapter plate onto your GM LS1, LS2, LS3, LS6, or LS7 engine to serve as your true valve cover, install the coil packs on top and route the wiring harness and spark plug wires into their designated locations, and use a perimeter bolt SBC valve cover of your choice to hide the unsightly coils without the need for any coil relocation and retention of all the benefits of OE style coil-on-plug mounting. Constructed of Cast Aluminum. Available in three finishes (Natural Cast, Black Painted, and Polished Finish). Includes all mounting hardware that allows mounting of three different generations of coil packs. Application: SBC to LS Engines. Bolt Pattern: Center Bolt. Breather Opening Size: N/A. Breather(s) Included: No. Coil Mounting Studs: Yes. Coil Options: with Coil Stands. Construction: Die Cast Aluminum. Gromment(s) Included: Yes. Internal Height: 1.208. Mounting Hardware Included: Yes. Oil Fill Cap Included: No. Overall Height: 1.385. Overall Height (in): 1.385. Product Type: Valve Cover Adapter Plates. Style: SBC to LS Adapter. Type of Component: Adapter Plate. This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles. Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle. CP Cometic ACL Ferrea and ARP Kits. Custom Made Package Deals. Head and Main Studs. Your address must be confirmed. Buyers who pay with unconfirmed addresses will not be accepted. We always look to satisfy our customers in whatever needs they may have.