Skunk2 Honda K20 Black Anodized Timing Chain Cover - 681-05-5005Skunk2 Racing K Series Timing Chain Cover for Honda K20A K20Z1 engines. Introduced over a decade ago, the Skunk2 is The Original' K Series Billet Timing Chain Cover. Each cover is CNC machined from billet 6061 aluminum and features a two piece design which facilitates easy timing gear access and cylinder head removal. The multi piece design allows each cover to easily be surfaced to fit engines with reduced head and deck heights. The interface between