rocker arm stud resistance, normal?

[seannz28]

I am finally assembling my engine, now that I have all the parts, and when I was putting the rocker arms on (wich are solid, not roller) the adjusting nuts went on with a fight, I only did one because I didn't want to ruin my brand new heads. So I backed it off and the nut was really hot from all the friction? this seemed a little odd to me.
any words of wisdom

[Kevin - Blown 95 TA]

Are these stock type rocker arms & nuts - they have a tight fit because there's no jam nuts. What else would hold them on?

[fastTa]

Did you get new studs with your rockers? Did they send the appropriate nuts to go with the studs? 3/8" or 7/16"?

[Rob B (shoebox)]

Stock nuts should initially thread easy and get harder as the nut is completely threaded through. That is because they are "prevailing torque" nuts, so they don't come loose.

[seannz28]

I was thinking that same thing, so that they don't come loose.
I got these rocker arms that came with the ball and nut, the studs were on the heads when I got them. The heads are edelbrock rpm performers, and the rocker arms are 3/8's made by Crane Cams.

they thread on easy, untill they are all-the way thread on, then resistance. I just remember adjusting the rockers on my freinds 5.0L Stang and there was no resistance what so ever....so I was a little confused.