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170/225 cam interchange?
https://slantsix.org/forum/viewtopic.php?t=47837
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Author:  Lobster1 [ Mon Feb 06, 2012 11:59 am ]
Post subject:  170/225 cam interchange?

Thanks for the input on my cam selection.

I brought the cam from my 62 225 to OCG and they told me it was a 170 and the con rods would hit it if installed in a 225.

The cam is out of my 225 and it appears that is is original. Did the early motors use different rods, is this a fluke or something else?

OCG can notch it for clearance, but if it is not necessary I will tell them not to.

Should I notch, find a different core or have them grind it as it is?

Thanks again!

Author:  Doc [ Mon Feb 06, 2012 12:22 pm ]
Post subject: 

Sounds like you have one of the thicker shaft cams.
No worry, the con rods will not hit it... grind away.
DD

Author:  Lobster1 [ Wed Feb 08, 2012 5:17 pm ]
Post subject: 

Thanks Doc!

I called OCG this morning and pulled the trigger...

Author:  Lobster1 [ Wed Feb 08, 2012 8:27 pm ]
Post subject: 

Are all early cam the thicker shaft? Why the difference, application? Ken at OCG thought they were 170 only and said that most of his /6 cam cores are this style.

Curious?

Cheers!

Author:  Dart270 [ Thu Feb 09, 2012 6:15 am ]
Post subject: 

I have seen many thick 225 cams on the earlier ('63-down?) motors, so I think it was both engines, just an earlier year thing.

Lou

Author:  Lobster1 [ Thu Feb 09, 2012 8:00 am ]
Post subject: 

Thanks Lou,
I'll pass that on.

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