Just to follow up on what Dennis already stated..


The 1970 Chevelle SS, whether a "396" or "454" came standard with the "domed" hood. This is basically a cowl induction hood without the flapper. When the car WAS NOT ordered with Cowl Induction the air cleaner could either be the 14" open element air clearner or the dual snorkle unit. The following applied though:

1) SS396 RPO L34...14" open element if no CI
2) SS396 RPO L78...(L78 was canceled very early Dec. '69) either 14" open element or dual snorkle if no CI
3) SS454 RPO LS5...14" open element if no CI
4) SS454 RPO LS6...14" open element or dual snorkle if no CI. In my opinion the 14" open element and the dual snorkle were used at the same time. There doesn't seem to be any definite time frame for the indroduction of one and the discontinuing of the other. It wasn't a "plant specific" item, either. I've heard of the dual snorkle unit being a "afterthought" to noise laws, but I really don't buy into this as 14" open element aircleaners were used on all SHP motors up to that point with no apparent problems.

If Cowl Induction was checked off (irregardless of engine) the aircleaner is the single snorkle base with the seal. The hood will then be the "domed hood" with flapper. Hope this helps.

Dennis thanks for the plug...Happy Holidays..