[GTOGEORGE]

Originally Posted by Elarson

The new studs have a reduced shank diameter. That's actually stronger in tension than the full size shank. The cross sectional area of the reduced shank matches the area in the threads and significantly reduces the stress concentration caused by the sudden step from big shank to the smaller threads.

Eric

Thank you!



GTO George

[taff2]

I seem to remember someone posting on here years back about VW going to the torsional /necked down head bolts on some of their diesel engines to enable them to hold a head gasket, apparently it worked very well.

[GTOGEORGE]

Originally Posted by GTOGEORGE

Ill have to put my temperature gun on the stud end after i cut another one for sh_ts & giggles!
Im positive it won't get close to 450 degrees.


GTO George

So I put a temp gun on a stud after cutting........no big deal raised it to 120 or so, temp dissipates quickly so may not be a perfect temp reading.


GTO George

[Dragncar]

Originally Posted by taff2

I seem to remember someone posting on here years back about VW going to the torsional /necked down head bolts on some of their diesel engines to enable them to hold a head gasket, apparently it worked very well.

They used to have terrible problems with standard type head bolts. Once they went to torque to yield bolts the issue was solved for the most part.
I hve a buddy who is a big VW guy and knows it in and out.
I have yet to hear about those style of bolts in a American performance engine. But even NA diesels have a lot of cylinder pressure and they use them on their turbo diesels too and they work.

[GTOGEORGE]

Originally Posted by Dragncar

They used to have terrible problems with standard type head bolts. Once they went to torque to yield bolts the issue was solved for the most part.
I hve a buddy who is a big VW guy and knows it in and out.
I have yet to hear about those style of bolts in a American performance engine. But even NA diesels have a lot of cylinder pressure and they use them on their turbo diesels too and they work.

Maybe it’s time to think outside the box.....I do and obviously it works!


GTO George

[GTOGEORGE]

ARP2000
Good looking studs!


GTO George