Well i bought a set of 062 vortec heads off of a member of this board and was getting the machine work and whatnot done and when they were pulling the studs so i can run screw in ones, one of the guide bosses broke off so one head is trashed, which isnt anybody's fault i guess, just my poor luck. Im going to run the hotcam with bigger springs, should i keep the other head with pressed in studs and get another head to match? and run it like that.

Im leary of pressed in studs, but i dont wanna be f*cked out 600 bux. Anyone have opinions on running .525 lift with the pressed studs?

Thanks.

 

I'd say the general rule of thumb is anything over .500 lift should really have screw-in studs. You might be ok with press-ins, but it's kind of a gamble. If you're really worried about another broken guide boss, you could always have them drill and pin the press-in studs. It's not as fancy as screw-ins, but it should do the job.

 

I thought of a new plan, i got another head for free, im gonna get it machined to match my other, sell those on ebay, then get a set of Dart iron eagle s/s's which seem to be just as good as the vortecs.

 

The factory Vortec and LT1/L99 heads used a sealant on the studs, since they penetrate the intake port runner roof. It's usually safest to heat the surrounding area before pulling the studs to prevent just such an occurrence.

I know it's a littler late for that head, but you might want to impart some of that information to your "machinist" or shop.

 

Yea, what he said. I think it is "someones" fault, but you'll never prove it.

 

fast forward a long time and ive been runing the vortecs with pressed in studs, and a 510 530 lift cam and all has been well untill last weekend, trans didnt shift right and i hit 7K and pulled out a rocker stud.


Found me some screw in studs finally, now i just need to find a tap and i should be good to go again. Def hooking the msd rev limiter back up!