[Purdy Swoft]

No , Ruth, not the head . It was mentioned earlier in this thread that model A engines that were running higher compression heads needed to torque the main bearings to 90 ft. lbs . I torque the new main bearing bolt kit only to 80 ft. lbs. like I have done with original Ford studs . These studs wouldn't get by on model A's that would be under national judging . The ones that I've used are much easier to use than original and none that I have used have leaked so far .

Just to add , the new stud kits that I used don't use castellated nuts or cotter pins . They don,t use the square ends on the front and center main bolts like original . This setup was a breeze to install and torque . This is just my experience .