Edelbrock LS1/LS6 Valley Plates
Edelbrock LS1/LS6 valley plates are intended for use on 1997-2004 GM LS1/LS6 engines and similar GM Gen III engines that have been converted from EFI to carbureted setups. They include a breather boss that will need to be drilled and tapped by those retaining the stock LS6 breather configuration, or for LS1 users looking to convert to an LS6 style.