How To Install Holley Valve Cover Adapter Plates for GM LS Engines

If you really want to keep them guessing, grab a pair of Holley small block valve cover adapter plates for your LS engine!

Holley’s cast aluminum adapter plates are a creative way to add the vintage style of a Small Block Chevy valve cover to your modern GM LS engine. Using just basic hand tools, you can bolt on a pair of Holley adapter plates, in place of the stock valve covers found on GM’s popular LS1, LS2, LS3, LS6, and LS7 engines. The innovative design and included hardware allows you to mount Gen 1, Gen 2, and Gen 4, factory coil packs to the adapter plate. Now it’s easier than ever to hide those unsightly OEM coils from view and eliminate the hassle of relocating them to a new spot. All that’s left now is decide which valve cover your going to top it off with? Holley has a wide selection of perimeter bolt small block Chevy valve covers that will work perfect with our adapters. Simply connect any necessary PCV hoses using the supplied fittings. Then install your new valve covers using your own gasket and mounting hardware (not included). Be careful not to pinch any wiring during the install.

Holley’s LS to small block Chevy adapter plates are available in 3 popular finishes. Choose natural, polished, or black to best match your new valve covers. Holley adapter kits include PCV provisions, new mounting hardware and sealing grommets, along with coil hardware to mount 3 variations of OEM coil packs to the adapter plate.

Take your LS engine back in time with valve cover adapters from Holley!

For more information on our LS valve cover adapters and to see our full line of small block Chevy valve covers, visit our website at Holley.com.