Dorman 675-093 Double Ended Stud - 5/16-18 x 9/16 In. and 5/16-24 x 1 In., 10 Pack Universal Fit

Used to replace the stock cylinder head studs on my '67 Dart's slant-6 engine. I believe that these will fit ALL slant-6 engines, but you'll want to check to make sure. It is on these that you would mount your intake and exhaust manifolds. Two packs of 10 will cover you (you'll need 13 total, so you'll have a few to spare). I fixed them firmly in place with Loctite 592 high temperature thread sealant (a 6ml tube was more than sufficient).I was able to remove the old studs by using two 5/16" "half-castellated" nuts (I don't know what the proper term is, but you can get them from McMaster-Carr, product # 94820A240 -- these are the same nuts you'll use to mount each of the far ends of the exhaust manifold, split-edges facing toward the cylinder head!). Using a 1/2" wrench, I threaded one nut about halfway down the stud. I threaded a second nut on the stud, tightly against the first one. I then attached the wrench to the bottom nut and spun it counter-clockwise (this takes a little muscle -- but not too much, lest you snap the stud in the cylinder head). Having removed both nuts from the extracted stud, I hand-tightened one nut onto a new Dorman stud. I threaded the stud into its hole to make sure everything was clean and strong, removed the new stud, and put some Loctite 592 on it. Finally, I threaded the stud all the way in the head and left the nut on while it cured. After it was cured, I used vise grips and a 1/2" wrench to remove the nut.Easy-peasy!

My order didn’t come with the right amount of bolts. I ordered 2 packs. Received 2 single bolts!

Good deep threads.

Fit my 225/ just like they should. Thank you.

Worked perfectly.

Good quality

Great