HD stud kit

[GoingBig]

i recenty put in a 416 kit in my 400ex and this past weekend i noticed that one of my head studs must be pulling out on the opposite side of the cam chain. it started making a load noise like a tractor and i notice when i rev it up and let off right away it back pressures though the metal gaskets and makes the strangest noise. anyone had this happen to them? where can i get a good stud kit? thanks for any replies

[2muchquad]

ask around on here,thats a common problem i guess.well im pretty sure studs are breaking because the bores are not centered or cylinders are warped after improper sleeve installation;)

[Rich250RRacer]

If it's the stock studs and you are running a high comp. piston then the studs are pulling out of the cylinder. Contact Laz at GT Thunder, he can get you set up.

[DAVE14]

my 12.5 to 1 440 is beat on quite a bit with no problems with g,t thunder studs the 416 isnt a big deal but its likely higher compression is whats pullin studs out