hi just wondered if anyone could shed any light on this for me, im about to rebuild my 4x4 engine and was thinking about putting a stud and nut kit on but i dont know what the advantage of this is,i see a lot of cossies have them, i am running a stage 3 chip, 3bar , t34 ,and 803s any advice would be very much appreciated cheers

 

Just tagging this as im intrested to know

 

WHAT APART FROM ELLIMINATING THE HEAD BOLTS AND USING STUDS TO LOWER THE HEAD ONTO!! ,THEN USING NUTS TO TORQUE DOWN!!

 

 

The stud and nut kit is designed to help prevent 'lift' and also shifting of the head under high boost applications. There has been a few rumours on here of them causing damage ie cracking of the block. Dunno personaly as ive not yet had chance to run my new engine....so I cant comment. They are also re-usable if needs be. If that helps?

Good answer Aaroncast

Stu.

 

cheers for that i think i will put a set on cheers

 

the idea is that the studs go further down the thread in the block to increase the " grip " they are not stretch bolts so they will not stretch when put under high strain from a high boost engine ( preventing the head from lifting up ) they also help to align the head and keep the gasket still when fitting a new gasket..

a much more reliable set up and a must ( at the least ) on high boost engines. and are reusable..

or go for full WRC long studs that need machining the thread in the block
to prevent block cracking....