do you know the base circle of the cam? you should not be having this problem so something must be getting overlooked.

 

no, as far as i know it is a regular magnum 270hr. would it list it on the cam card?

here are the pictures with the head gasket.
7.25

7.15(can only get set screw/lock 1.5 turns in, is this enough?)

 

You are having the problem because you are using the springs. You need to remove the 2 springs on the cylinder you are checking and use light tension checker springs.

 

i am, if you look closely you'll notice silver springs on the ones i'm checking and black normal springs on the ones i'm not.

i think i've decided that a 7.2 pushrod will get me closest to the center with out being too short.

 

I like the 7.250 pushrods from that picture. I like the sweep pattern and it is close enough to the center. 1.5 turns is not anywhere near enough.

 

Ummmm, you are right. I am wrong . Sorry for attempting to help with your problem. I will not confuse your posts in the future.

 

i didn't mean to offend anyone, sorry.

the 7.2 gives me 2.5 turns on the lock, and looks to have the same sweep pattern and just a bit closer to the center. and i already ordered them.

 

Are you referring to the set screw inside the adjusting nut that has the 2 /2 turns?

 

yes

 

If it was me I would like to see more than 2 1/2 threads holding the lock screw in place. One option would be to install a shorter rocker arm stud. By shorter I mean on the upper half of the stud not the portion that screws into the head.

 

I'll look into those, but I think that being screwed almost halfway in would be ok. I don't know how much these like to loosen up though, I didn't have any trouble with the stock nuts loosening with an xe268 and stock rockers in my 327.

 

from what I can see the 7.2's look like they should be ok. I would not be comfortable with only half way in on the lock screw. Something isnt right there. I think you need shorter studs. The set screw should be in much further than that.

 

Back from the dead!

Did you ever figure this out?