273 Rockers on a 360
Hi all...I'm new to the board and need a little advice. I've followed the site for a long time and always research before I post, but I can't find an answer on how to properly set up 273 rockers on a 360LA. The heads I have are J Heads that have been shaved and unfortunately I don't know how much, but this will prevent me from using stock pushrods. I do have a pushrod checker, and once I get the correct length figured out I will order the correct rods. I'm having two issues that I believe both can be corrected by shimming the rocker shaft posts, but want to run it by here to see if there is something I'm missing.
The first questions is about the sweep of a 273 rocker arm across the valve tip. Here are a couple of pictures at installed height and at full compression. My thought is that this geometry is off and the tip should be closer to center when at installed height.
The second issue is that my pushrod is rubbing the guide holes in the head.
My thought is that I should shim the rocker shaft pedestals and that would correct both issues. What are your suggestions?
I've enclosed photos of the sweep and the rubbing in the push rod guide holes. Thanks for your help!
Hi all...I'm new to the board and need a little advice. I've followed the site for a long time and always research before I post, but I can't find an answer on how to properly set up 273 rockers on a 360LA. The heads I have are J Heads that have been shaved and unfortunately I don't know how much, but this will prevent me from using stock pushrods. I do have a pushrod checker, and once I get the correct length figured out I will order the correct rods. I'm having two issues that I believe both can be corrected by shimming the rocker shaft posts, but want to run it by here to see if there is something I'm missing.
The first questions is about the sweep of a 273 rocker arm across the valve tip. Here are a couple of pictures at installed height and at full compression. My thought is that this geometry is off and the tip should be closer to center when at installed height.
The second issue is that my pushrod is rubbing the guide holes in the head.
My thought is that I should shim the rocker shaft pedestals and that would correct both issues. What are your suggestions?
I've enclosed photos of the sweep and the rubbing in the push rod guide holes. Thanks for your help!
