[FastEddy]

Do the 4 nuts on top of the rockers need to be torqued down or just snug them down?2000 Model iron head 500 Bullet.Thanks

[Arizoni]

Yes, they need to be torqued but the torque value is below the recommendations of the repair manual or the values I think Snydel (?) recommends.

Wait for Ace to jump in and give you the right number.

[Chuck D]

I think it's 20 ft/lbs.

[1 Thump]

I think it's 20 ft/lbs.

Correct

[solg]

HOLD IT. if you are talking of the rocker blocks (3/16'rocker bearing stud nuts). they are only 5ft/lb

[Chuck D]

HOLD IT. if you are talking of the rocker blocks (3/16'rocker bearing stud nuts). they are only 5ft/lb

Brain fart! I was thinking of the head studs themselves.
Listen to Sol!

[Arizoni]

You are right solg

Ace.cafe says to use 5 foot pounds of torque on those rocker arm block studs.

https://forum.classicmotorworks.com/index.php/topic,20898.msg255278.html#msg255278

[Ice]

If you are talking about the rocker block stud nuts of an Iron Barrel engine, the torque chart on Pg. 100 of the Super Factory Service Manual call for 112 in-lb./ 10 ft-lb
 
 I and others have had the studs pull from the head before reaching the torque value as listed.

 Many now use 5 to 9 ft-lb.

[Arizoni]

For those thinking that only 5 lb/ft (60 lb/in) is not much, that amount of torque on a dry 3/16" stud will create a clamping force of about 1,500 pounds.
With 4 studs in each block, the total clamping load on the block will be over 6,000 pounds !!!

That's more than enough to resist the pressure from the valve spring and any inertia that might be involved with the moving parts.

[solg]

Yellow circle - 20ft/lb
Red circle - 5ft/lb

[FastEddy]

Ill go with the 5ft/lbs!Thank you

[Ice]

  I have had no problems with stud nuts vibrating loose at the reduced torque value and don't recall anyone else here having a problem either.