O-Ringed Block

[vdubkilla]

I had always heard of o-ringing a block but never knew why people had it done or what it truly meant .I thought it was actual o-rings but have since found out differently .Here is a picture of my aebs sleeved and o-ringed block



The machine shop cuts a grove in the block and installs a thin copper wire that you can see in the pic. You still run a head gasket like normal but the o ringing of the block helps seal it better for high boost applications .It's a much debated topic by many as far as whether or not to do it but the way I see it why not as it can't hurt if your boosted and making power .Prior to doing it I had asked a tuner I know pretty well and he said no doubt do it.