Fox Need help with heads!

[fordamodel]

I took my engine apart for a refresh 331, SRP pistons, flat top with two valve reliefs, had old world product heads that are going to cost more to rebuild than worth. Would like to reuse my stud mount 7/16 arp studs and rocker arms also. Some people say you cant use TF heads but some say you can, my cam is Comp cam by Ed Curtis duration @ .050 is 219 intake and 231 exhaust, gross valve lift .594 hyd roller. I notice lots of heads have the 3/8 stud mount not 7/16. Just wondering so I don't waste money trying to find the right heads, taking suggestions?

 

[Dan02gt]

AFR has a option to upgrade their heads to 7/16 studs. I'm not sure about TF though.

 

[fordamodel]

Thanks I'll check, I've heard good thing about AFR.

 

[96pushrod]

The 11r trickflow heads use 7/16

 

[fordamodel]

Do you have to change to Trick Flow pistons to run these heads?

 

[Reddevil91]

170s run 3/8 stud rockers and the 190s are 7/16.

 

[96pushrod]

170s run 3/8 stud rockers and the 190s are 7/16.

All 11r run 7/16

 

[Reddevil91]

All 11r run 7/16

Oh yes that’s true was thinking about the 170s with upgraded springs non 11r’s.