This is the cam just for a non roller motor .I had the cam ground for a roller setup and more lift this was a ultradyne cam from the late 80,s for all the big blocks.
http://www.cranecams.com/index.php?s...61&lvl=2&prt=5

mine has the factory roller....gen VI

Hey skaterboy, still have any of those cams ? might be just the ticket if they are for a gen VI..email [email protected]
or call me at 540-786-8111 thanks Rob

Not yet anyway...and yes you have reversion. And to the guy using using the EMI silent choice risers w/ the 525 cam...all I can say is DON'T DO IT and get some expert advice. You can't just take a cam with big duration #'s, sprinkle in a couple degrees of LSA and declare it safe for a marine engine with silent choice risers...overlap is the contingent for reversion, LSA is only a net reducer/increaser of overlap. The 525 cam has alot of overlap and that engine comes with some very long dry exhaust to diminish the effects of water injestion(reversion). Some guys "don't have a problem with reversion" because just maybe they can drop their boat in the water and go, while another with the same set up who has to navigate for lenghty period of time through a no-wake area finds his motor ruined in short order. Lots of factors to consider. Take Care, Dave

I have a brand new was installed but never ran GM cam #12551622 or Merc mag cam.#431-8510478 is 224/ 224 @ .50 duration . 483in -.483 ex lift 115.5 LSA make offer will ship I have all the factory rockers, bolts locks retainer springs for this cam

So really all i need to do is buy the taller risers that emi offers?

they need to be water jacketed out the transom , I may have a set of stainless marine dry for sale. for 1000, if that is cheaper for you.

Hey thanks for the offer air time, what i am gonna do is send in my riser emi and they are gonna cut and fab the end just like the 512 which is a 16 inch long riser.So i will be golden.