I have my head sent away on some head work, should i o-ring the head also while itīs of the car or is it just a bad idea?
i have searched the forum and some like the o-ringed head and some donīt










-----------------------------------------------------------------
Porsche 944 Turbo 1990
http://www.944sverige.com/forum/view...r=asc&start=75

 

Since O-ringing my head, I have had no coolant/HG leak issues despite running 18# boost at the track. To me it is cheap insurance.

 

eclou, what head gasket are you using?

 

Widefire, and Raceware head studs

 

what?
You can o-ring the head or block alone.
You may also cut a reciever groove into the surface which does not get SS/CU

 

i know that the best is to o-ring the block and have a reciever groove in the head but iīm wondering if itīs a good idea to just have the head o-ringed when itīs in the shop for head work anyway?
(Iīm not going to o-ring the block and iīm going to use a orginal HG).

 

I went the other way. I rather be able to use a MLS gasket than have O'rings. With O'rings, you cannot run MLS. Even Porsche has switched to MLS on their newer cars.

Raj

 

But MLS-gaskets are not to be recommended without decking both the block and head. Very critical to have everything super flat, cleaned etc. Otherwise a stock type is a safer bet!

 

any more thoughts?

 

O rings on my car with zero issues regarding head gasket.

 

block or head RKD?

 

+1 for o-ringed head and tracking with no issues..

 

if you going to run allot of boost get it o-ringed

 

can we expand the survey, o-ring with stock head gasket vs. o-ring with wide fire vs. mls. opinions???

 

So why not run a o-ringed block with a metal head gasket...? Wouldn't that make that area a non issue for failure due to high cylinder pressure? Just my 2 cents...