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crf311

05-24-2016 05:52 PM

What are my cam specs?

I'm trying to find out the cam specs for a cam I have. I was told It is from a mercruiser 415HP gen 6 motor 502 EFI. It's a step nose roller cam. The only number I can find on the cam are: 2277 over 1622. On the other side of the cam face is 413836. Google wasn't any help. Thanks

SB	05-24-2016 06:05 PM

Here.

Quote:

Originally Posted by SB

Mercruiser 454 502 Mag Roller
Merc# 431-850478 / GM#12551622
.004 300*/ 300*
.006 288*/288*
.050” 225*/225*
.200” 125*/125*
Lift .483”/. 483”
ICL 109*
LSA 115.5*

crf311

05-25-2016 08:28 AM

Quote:

Originally Posted by SB (Post 4442760)

Here.

Thanks, I had found those, but wanted to make sure it matched what was etched on the cam.

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