January 24, 2022, 10:09:18 PM


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SE valve springs

Started by hrdtail78, January 14, 2022, 08:15:05 AM

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I was looking at bolting in the Red Shift 552 cam into an already existing 124.  Build is a S&S 124 drop on cylinder and piston kit, and SE cnc heads.  Zippers state that the SE springs are not good enough for their 550 lift cam and I need the springs they offer.

I run their EV715 cam in an engine that redlines at 8000, and I have a special spring package to deal with it.  Is this really a concern for a street bike that is going to 6200?  What are peoples opinions on the SE spring packs they offer?

Semper Fi

HD Street Performance

By the specs they are fine but they break! I recommend using Kibblewhite 20-21800 available from Goodson