Missy Good Wench
Wild Blonde from Cloud Mt
As most of you know my dually truck (DaHoooley) had a complete engine BUILD last summer with almost all of the major engine parts being replaced.
Block, heads, pistons, rings, bearings, lifters.
Saved the crank and the cam and the peripherals is about all.
Now to the point
I ended up using a COMETIC MLS head gasket on one side due to the block having been decked once before I got it and then we decked it again.
The head gaskets by Cometic are a multi layer stainless steel and are riveted together in a few spots around the edge.
The gaskets are coated with a special material to assure a good coolant seal as well.
The Cometic gaskets are also RH and LH specific
The water ports that do nothing up front ( except promote corosion and block erosion) are not in the Cometic gaskets.
The deck and the heads need to be very smooth when using these gaskets so if you have the shop machine the decks, have them done smooth as a baby's BUTT.
The cometic gaskets are solid stainless in all layers and are "coined up" or if you will, have ridges to mechanically seal the compression.
If you are at all anal about having coolant leaks as I was, the company rep advised me to simply spray the gaskets on both sides lightly with copper coat and then install. (Warm and fuzzy feeling ya know)
Another plus is that these gaskets can be ordered to custom thicknesses too.
I needed one that was .070 thick and these numbers are a Compressed thickness.
With the piston at TDC on a 6.5 TD you should end up with about .035" clearance between the head and the piston.
If your pistons are above the deck a little you can always order a slightly thicker gasket.
These gaskets are a real plus when you have a block that needs a second time around on being decked. (far better than tossing out an otherwise perfect peice of Iron.
DaHoooley has been on the road now for a while and is running perfect.
Smoothest 6.5 I have ever owned.
.020 oversized pistons, "T" precups, a set of 6.2 rods, Stock GM heads from Gawd knows what. 93 I Was told
Used the one cometic gasket on the Turbo side and the felpro +.010 on the other side.
The next time around on any 6.5 Build I will definately use the cometic gaskets.
These are far and away a better choice than the composition gaskets.
For one they are all metal and not metal/fabric
There is no coolant contact in the front water passage area to cause the erosion commonly seen around cyls 1 and 2 fire ring.
Missy says don't build without them.
(This was not a paid solicitation) :smile5:
Any questions, call the friendly folks at Cometic (find them on the web)
OH BTW
Cometic offers a stock thickness gasket in their catalogue
Missy
Block, heads, pistons, rings, bearings, lifters.
Saved the crank and the cam and the peripherals is about all.
Now to the point
I ended up using a COMETIC MLS head gasket on one side due to the block having been decked once before I got it and then we decked it again.
The head gaskets by Cometic are a multi layer stainless steel and are riveted together in a few spots around the edge.
The gaskets are coated with a special material to assure a good coolant seal as well.
The Cometic gaskets are also RH and LH specific
The water ports that do nothing up front ( except promote corosion and block erosion) are not in the Cometic gaskets.
The deck and the heads need to be very smooth when using these gaskets so if you have the shop machine the decks, have them done smooth as a baby's BUTT.
The cometic gaskets are solid stainless in all layers and are "coined up" or if you will, have ridges to mechanically seal the compression.
If you are at all anal about having coolant leaks as I was, the company rep advised me to simply spray the gaskets on both sides lightly with copper coat and then install. (Warm and fuzzy feeling ya know)
Another plus is that these gaskets can be ordered to custom thicknesses too.
I needed one that was .070 thick and these numbers are a Compressed thickness.
With the piston at TDC on a 6.5 TD you should end up with about .035" clearance between the head and the piston.
If your pistons are above the deck a little you can always order a slightly thicker gasket.
These gaskets are a real plus when you have a block that needs a second time around on being decked. (far better than tossing out an otherwise perfect peice of Iron.
DaHoooley has been on the road now for a while and is running perfect.
Smoothest 6.5 I have ever owned.
.020 oversized pistons, "T" precups, a set of 6.2 rods, Stock GM heads from Gawd knows what. 93 I Was told
Used the one cometic gasket on the Turbo side and the felpro +.010 on the other side.
The next time around on any 6.5 Build I will definately use the cometic gaskets.
These are far and away a better choice than the composition gaskets.
For one they are all metal and not metal/fabric
There is no coolant contact in the front water passage area to cause the erosion commonly seen around cyls 1 and 2 fire ring.
Missy says don't build without them.
(This was not a paid solicitation) :smile5:
Any questions, call the friendly folks at Cometic (find them on the web)
OH BTW
Cometic offers a stock thickness gasket in their catalogue
Missy