Does anyone know what grind this Crane cam is #'s engraved around the edge are "139641" Also engraved is "13-14-97 CR"
These are out my 540 engines any info would be appreciated Thanks

If it isnt in their latest catalog which is available on the web site, then give them a call. They are very helpful at looking at older part numbers and can e-mail you a cam card.

I believe this is what your looking for

234/242 at .050, .610/.632 ls112

Ok so is This an acceptable for a marine 540 with a SC3300 Whipple and Carrillo rods and Kryptonite crank I'm not a Gear head so please I welcome any advise or comments,Thanks

Acceptable.......Yes. Its very close in specs to the Crane 168741. https://www.summitracing.com/parts/crn-168741.

Optimal,..... maybe. It looks like its for your Aronow Cat which is very heavy. It may not make the most HP, but the torque should be good.

Yup came out of the cat! I was pondering having Marine kinetics grind two new ones, That old beast will never ever be a speed demon, so maybe i will use them. Im looking more for reliability and longevity rather than hp.

You may want to research Marine Kinetics before you do that, or have all of the threads been deleted?