These covers are made from heat treated cast alum. and are precision machined so they sit nice and flat on the engine. Each cover is machined for two Donovan breathers which can be purchased separate. These covers sit a little taller than factory Hemi valve covers to help clear valvetrain components.
RBS carries a full line of valve cover gaskets, spark plug tubes and breathers to fit these valve covers. So wether you are building a cackle fest engine or you have a 392 in your bad ass street rod show pride in your ride with these valve covers. Fits 354, 392 and most 417 heads that use the factory Chrysler six bolt pattern.
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