273 rocker push rods

I talked to the owners son of OE Pushrods this morning (really nice guy) and began my order for new pushrods. Thanks, Krazykuda.

Rocket, I checked the cups and springs for clearance when gauging the pushrod lengths. Pre-grinding the rockers for springs helped. The pushrod cups look good with the adjusters set at the proper position of 1 1/2 to 2 threads exposed.
gm1236, The 273 rockers that I have look like they have very little wear to them. I talked to Jim from Racer Brown about using them with the factory adjusters. He felt the same as you that they should be fine with his ef-20 cam. I was a little skeptical about them since I once owned a '71 340-6 Cuda that had the lock-nut adjusters. I thought they made a change for a reason.
Thanks both of you for the help.