Q on 113 heads, rockers, guide plates, etc.
 

I am installing 113 heads on my 350. The heads I pulled off are 810 heads with self guiding rockers.

The 113 heads have guide plates on them, but I see online that a 90 model vette used self guiding rockers. I am guessing these plates were added later? Or did the vette use both?

Main question, can I use both? Or do I need to pull the plates off and run my self guiding rockers?


If I need to pull the plates off, what is the torque spec for the rocker studs?

Thanks

Re: Q on 113 heads, rockers, guide plates, etc.
 

All alum Vette heads (128 / 113 ) use self aligning rockers.

The "guide plates" you see on SA heads are only plates used at the factory for assembly purposes ; not true hardered plates for use with non SA rocker and pushrods

Re: Q on 113 heads, rockers, guide plates, etc.
 

Pick one or the other. Since you are using the self aligning rockers, remove the plates.

Re: Q on 113 heads, rockers, guide plates, etc.
 

Alright, anyone know what the torque spec is for the studs when I put them back in?

Re: Q on 113 heads, rockers, guide plates, etc.
 

Do these heads have 3/8 studs?Gonna order some rockers today wanted to be 100%

Re: Q on 113 heads, rockers, guide plates, etc.
 

I reused the rockers that I had which were stock, which I am thinking was 3/8.

Re: Q on 113 heads, rockers, guide plates, etc.
 

AFR calls for 55-60 ft/lbs for the rocker studs on their aluminum heads.