Pushrod Length 67 289?
I had a rattling rocker arm. Turned out to be No. 1, tightened it and it began pulling out the crappy pressed in stud. So I pulled the heads and had screw studs installed (solved one problem). So the new studs are now 3/8" and my old rocker arms will not work. I got the car last year and don't know the cam brand or cam specs (it's a mild cam). I ordered Comp Cam 3/8" rocker arms with roller tips and 1.6 ratio, so standard for the most part. The block is 289 and the heads are 302 with non-rail rocker arms.
So the magic question is: Can I use the original push rods or do the roller tips change the required pushrod length?
chevy runs deep, Don't step in chevy!
289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.