I was just trying to get my pushrod size today and had some weird things happen.
The heads are c9ve (same as dove's), 1.73 harland sharp roller rockers,ARP 1.75 chev big block studs, comp 3/8 stud mounted guide plates, 10 new valves- stock size, head has been machined but i dont know know how much, com 282s cam - .57 lift and 282 duration both intake and exhaust, comp solid lifters,comp double valve springs, comp doulble roller timing chain set, the heads were machined to fit the valve springs and seals, i gave them a mild port job and poilish- mostly to get rid of the exh hump.
Ok, now thats all sayed and done
I installed the guide plates and studs. put the roller rockers on and started adjusting the polly locks until the roller was just slightly to the intake side of the vlave stem. I then installed the adjustable pushrod and adjusted the length, locked everything and turned the engine over then checked the partern on the valve tip. The intake side went ok but I was a little concerned with only having aprox 1/16 of adjustment until the rocker bottoms out on the stud. Next i set up the exhaust side and used the pushrod adjusted to the same size as the intake- it was too long and i found the pushrod hits the guide plate then gets jammed. i ground out the exhaust side guide plate so the pushrod no the exhaust side longer gets jammed against it. Then continued and adjsuted the pushrod for the exhaust side. Every thing seems ok but I did notive the pushrod is on much more of and angle to the pocket on the rocker. i did transfer the pushrod back to the intake side and recheck the pattern - it looks ok, its just slightly to the exhaust side- very slight.
My major concern is the anlge of the rockers. As far as I can see it all comes down to the length of the roller side of the rockers, its too long. if it were shorter I would be able to tighten the rockers down less without loosing centered valve tip pattern. this would fix the pushrod/pocket angle. It would also fix the pushrod hitting guide problem. It would fix the rocker to stud clearance also.
Has anybody else ran into these problems before? Please help.
Sorry for such a long post but i wanted to give you all the info you needed.