first AAN engines

[Rocco]

and why would that be? The head and block surface should be flat from the factory right? So if the old headgasket was not blown due to overheating I can't see why the head and block should be skimmed?

Yes that's true AFAIK

I don't see the point to machine the block deck and head main face.

I did the same in the past with my 3b engine,just swap gaskets and perfect.

Dmitri,are composite gasket the "paper" ones true?

[prj]

and why would that be? The head and block surface should be flat from the factory right? So if the old headgasket was not blown due to overheating I can't see why the head and block should be skimmed?

I was told that because the composite gasket is not as smooth.
Either way, when changing HG for the first time you should at least check the head and block...

Of course it depends what kind of power you are pushing. It is likely everything will be fine on a stock car, not so much at 600-700hp with higher pressures.

[Rocco]

I was told that because the composite gasket is not as smooth.
Either way, when changing HG for the first time you should at least check the head and block...

Of course it depends what kind of power you are pushing. It is likely everything will be fine on a stock car, not so much at 600-700hp with higher pressures.

yes thats true also¡

we were checking my cylinder head,the main face and how thet valves and guides were,and all were in tolerances,so no reason to machine anything

RS2 turbo powered¡

[quattrostyle]

agreed, in case of 600+ powered engines it would be daft not to skim the head at least, but can't see a problem with RS2+ spec.

But then is the question how long will Rocco leave it RS2 spec