Head Gasket Sealing Issue
Thread Starter
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
Head Gasket Sealing Issue I have an LR4 with 241 heads that I am having a head gasket sealing issue with. Water is leaking between the head and the block right around cylinder #6. I have determined that is due to the block having some pitting where the head notch used to be. I've tried an LS1 MLS gasket as well as an LS9 coated with copper spray. Would a stock style paper gasket be able to seal this up? It also looks like the Cometic gaskets seal off the coolant passages better than the GM ones, might that be an option?
Thread Starter
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
Launching!
Joined: Dec 2014
Posts: 215
Likes: 1
I have an LR4 with 241 heads that I am having a head gasket sealing issue with. Water is leaking between the head and the block right around cylinder #6. I have determined that is due to the block having some pitting where the head notch used to be. I've tried an LS1 MLS gasket as well as an LS9 coated with copper spray. Would a stock style paper gasket be able to seal this up? It also looks like the Cometic gaskets seal off the coolant passages better than the GM ones, might that be an option?
Thread Starter
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
I ended up going with the Fel Pro MLS gasket. The gasket has no sealing surface in the area of the block where the pitting is and I used come copper RTV on the block for added insurance. No leaking at all now.
