Jump to content

Camshaft 1" vs 1 & 1/8 "


Conn47D24

Recommended Posts

Probably the camshaft gear mounting  hub to cam diameter measurement .

  • Like 1
Link to comment
Share on other sites

Yes

 

The end that the hub is pressed on.

 

Size changed about 1951??

Hollander interchange indicates that the cams are the same for some models if you just change hubs.

 

Wonder why the change  came about. 

 

Link to comment
Share on other sites

Looking thru my passenger and truck master parts books 1952-53 looks like the transition period.

  • Like 1
Link to comment
Share on other sites

  • 2 weeks later...
On 3/2/2019 at 5:21 PM, Conn47D24 said:

Curious about this.

 

Why did L6 mopar cams change from 1" to 1 1/8 " ?

 

 

 

They moved to 1 1/8 1st on the canadian 25 1/2" engine in the bigger truck engines and by 1951 all the canadian 25 1/2" camshafts have the larger hubs.   I had George Asche tell me if he was regrinding a wild cam he would always use a 1 1/8" cam.  That doesnt answer the reason why but given they seemed to start in the heavier trucks it likely had something to do with strength or longevity.  A call to George Asche or Tim Kingsbury would likely reveal more than I have for you.

  • Thanks 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Terms of Use