HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech
Reload this Page Cam I.D. help needed
Register Photo Gallery FAQ Community Calendar


Reply
 
Thread Tools Display Modes
Old 03-18-2021, 09:41 AM   #1
Joe Marcinowski
Member
 
Joe Marcinowski's Avatar
 
Join Date: Nov 2005
Location: Northern Ohio
Posts: 201
Likes: 692
Liked 33 Times in 15 Posts
Default Cam I.D. help needed
Anyone know the specs of the following cam? It's an older SBC Super Stock cam.

Comp Cams 4484/312-8 R6
Grind number R 7305

Comp was no help. Thanks in advance.
__________________
Joe Marcinowski 3377 STK
Last edited by Joe Marcinowski; 03-18-2021 at 09:44 AM.
Joe Marcinowski is offline   Reply With Quote
Old 03-18-2021, 10:11 AM   #2
Stan Weiss
Senior Member
 
Stan Weiss's Avatar
 
Join Date: Apr 2020
Location: Phila, PA
Posts: 609
Likes: 0
Liked 545 Times in 291 Posts
Default Re: Cam I.D. help needed
Don't know what you are looking for. This is from an older Comp Cams Master List I have.


Stan
Attached Thumbnails
Click image for larger version Name: ab-comp4484.gif Views: 220 Size: 18.7 KB ID: 56965  
Stan Weiss is offline   Reply With Quote
Old 03-18-2021, 10:19 AM   #3
pmrphil
Member
 
Join Date: Aug 2010
Location: CT
Posts: 388
Likes: 1,269
Liked 250 Times in 107 Posts
Default Re: Cam I.D. help needed
Stan had the intake correct, high ratio, high RPM Super stock, using 1.8 - 2.0 rocker.

The 312-8 is a High torque .440 lobe, 312 adv., 284 @.050, 1.5 through 1.7 rocker ratio.
And you probably know it was ground on a 106 lobe separation.
Phil
__________________
Phil Molski
S/C 1623
pmrphil is offline   Reply With Quote
Old 03-18-2021, 10:43 AM   #4
Stan Weiss
Senior Member
 
Stan Weiss's Avatar
 
Join Date: Apr 2020
Location: Phila, PA
Posts: 609
Likes: 0
Liked 545 Times in 291 Posts
Default Re: Cam I.D. help needed
OK here is what is listed the exhaust lobe.


Stan
Attached Thumbnails
Click image for larger version Name: ab-comp4214.gif Views: 164 Size: 26.4 KB ID: 56966  
Stan Weiss is offline   Reply With Quote
Old 03-18-2021, 12:33 PM   #5
Joe Marcinowski
Member
 
Joe Marcinowski's Avatar
 
Join Date: Nov 2005
Location: Northern Ohio
Posts: 201
Likes: 692
Liked 33 Times in 15 Posts
Default Re: Cam I.D. help needed
Stan and Phil...thank you!

Any thoughts on a lash setting?
__________________
Joe Marcinowski 3377 STK
Last edited by Joe Marcinowski; 03-18-2021 at 12:53 PM.
Joe Marcinowski is offline   Reply With Quote
Old 03-18-2021, 01:02 PM   #6
Stan Weiss
Senior Member
 
Stan Weiss's Avatar
 
Join Date: Apr 2020
Location: Phila, PA
Posts: 609
Likes: 0
Liked 545 Times in 291 Posts
Default Re: Cam I.D. help needed
Quote:
Originally Posted by Joe Marcinowski View Post
Stan and Phil...thank you!

Any thoughts on a lash setting?

No, I don't have any idea on lash settings. But remember lash will depend / change based on what rocker arm ratio you are using.

Stan


PS - I found this. It might be a good starting point
Attached Thumbnails
Click image for larger version Name: ab-comp-super-stock.gif Views: 168 Size: 16.2 KB ID: 56967  
Last edited by Stan Weiss; 03-18-2021 at 01:34 PM.
Stan Weiss is offline   Reply With Quote
Old 03-18-2021, 07:40 PM   #7
Henrys Toy
Member
 
Join Date: Oct 2020
Posts: 244
Likes: 3,314
Liked 470 Times in 160 Posts
Smile Re: Cam I.D. help needed
Quote:
Originally Posted by Joe Marcinowski View Post
Anyone know the specs of the following cam? It's an older SBC Super Stock cam.

Comp Cams 4484/312-8 R6
Grind number R 7305

Comp was no help. Thanks in advance.
My best advice is find a racer / machine shop with a Cam Doctor and have them spin it! There won't be any guessing then. I check my new cams just to be sure. Or get your dial indicator and degree wheel out ,stick it in a block with a rotating assembly in it , grab a cup of coffee and start measuring.
Henrys Toy is offline   Reply With Quote
Old 03-18-2021, 09:04 PM   #8
BillK
Member
 
Join Date: Nov 2005
Location: Waldorf Md
Posts: 222
Likes: 10
Liked 26 Times in 15 Posts
Default Re: Cam I.D. help needed
Quote:
Originally Posted by Joe Marcinowski View Post
Grind number R 7305

Comp was no help. Thanks in advance.
I am surprised that they couldnt look up the R7305 and tell you what it is ? They looked up a cam for me a few months ago that was from 1980.
__________________
Bill Koustenis
BillK is offline   Reply With Quote
Old 03-19-2021, 04:03 PM   #9
Joe Marcinowski
Member
 
Joe Marcinowski's Avatar
 
Join Date: Nov 2005
Location: Northern Ohio
Posts: 201
Likes: 692
Liked 33 Times in 15 Posts
Default Re: Cam I.D. help needed
Quote:
Originally Posted by BillK View Post
I am surprised that they couldnt look up the R7305 and tell you what it is ? They looked up a cam for me a few months ago that was from 1980.
As was I.
__________________
Joe Marcinowski 3377 STK
Joe Marcinowski is offline   Reply With Quote
Old 03-19-2021, 04:06 PM   #10
Joe Marcinowski
Member
 
Joe Marcinowski's Avatar
 
Join Date: Nov 2005
Location: Northern Ohio
Posts: 201
Likes: 692
Liked 33 Times in 15 Posts
Default Re: Cam I.D. help needed
Thanks to all. Got my question answered and received some great info.
__________________
Joe Marcinowski 3377 STK
Joe Marcinowski is offline   Reply With Quote
Reply


« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 11:43 PM.

Class Racer - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.