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Can someone explain the stock 1970 440-6 cam specs, its P/N, if its hyrdralic or solid lifters,what is the 509 Purple cam, and the difference b/t them? Thanks.



Check this website out has all the specs for the stock and purple shaft cams. Stock 1970 cam is hydraulic lifters.
http://victorylibrary.com/mopar/mpcam-tech-c.htm

1969 Plymouth Road Runner 440 auto
2017 Ram 1500 Quad Cab 5.7 Hemi