Old Crane Cam again

Hi everyone- I have a Crane Cams roller camshaft for a big block Chevy that I need the specs. and valve lash for. I would appreciate it if anyone could help. The numbers on the cam are: 139536 TR272/4167-25-10 BP7974. If you have any info please let me know. Thanks!

 

Hello again, I sent you a copy of the spec card about one hour ago, to your personal email. Did it not reach you? Thanks, Chase

 

Hey Chase! No-I didn't receive it. Please send again to: dmfitz66@yahoo.com. Thank you very much-Dave

 

Just sent it again. It's a pdf file, so hopefully that's accepatable to your 'puter. Chase

 

Hey Chase! Sorry-I'm not very computer literate-My e-mail doesn't show a message from you at all so maybe I can't receive pdf format. Could you please just write a regular e-mail with lift, dur@50, lobe center & valve lash. Thank you so much!

 

This is Crane Cams part number 138201. It's a mechanical roller camshaft for a BBC. Recommended valve lash is .022" on both intake and exhaust at operating temperature. Lobe lift is .4167", providing a gross valve lift of .708", with standard 1.7:1 ratio rocker arms. Cam timing at .050" tappet lift is: intake opens 29 BTDC, intake closes 63 ABDC, exhaust opens 72 BBDC, exhaust closes 26 ATDC. Duration at .050" is 272 degrees intake, 278 degrees exhaust. Lobe separation is 110 degrees. The basic power range is 4400-7800 RPM. Please let me know if there's anything else. Regards, Chase

 

Hi Chase- Thank you so much. I appreciate all the effort. That is all the info I needed! Hope to talk to you again in the future! THANK YOU- Dave

 

Does anyone have the specs on the old Crane SS350 solid lift cam? I believe it had a .507/.543 lift and a 350/366 duration, not sure of the lobe seperation.

 

From the 75-76 catalog-

 

The lobe separation is 112 degrees. Timing at .050" cam lift is: intake opens 22 degrees BTDC, intake closes 59 degrees ABDC, exhaust opens 72 degrees BBDC, exhaust closes 21 degrees ATDC. Regards, Chase