Solid rollers with off set push rod hole issue.
If I could I would run 3/8"pushrods but room is tight.
I have used both single taper (7/16 x 3/8) and double taper 7/16 x 3/8 x 7/16) pushrods to get them half assed close to rigid enough.
Ramm’s above post is 100 fact. He nailed it. Lots of good information in that post.
It’s my opinion (based on years of running W2 and W5 heads and even GM crap) that you can’t get a pushrod too stiff.
Overkill on pushrods is barely acceptable.
I went through a time where you could torque the rocker adjusters so tight they would snap and they would still come loose.
I forgot how I figured that one out but the pushrods were flexing so much it was like the adjusters were getting hammered on like they were getting hit with an impact gun (I apologize for the horrible sentence structure…) and they would come loose.
I’ve seen heads that had .150 clearance and the pushrods showed witness marks from bending that far and rubbing the head.
Can you imagine what that pushrod is doing if it is bending far enough to eat up .150?? That’s crazy. And who knows? It might have bent even more if the head wasn’t acting like a guide plate.
As Ramm said, offset rocker valve train is its own *****. You have far less room for error with offset rockers.
