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Well I hit up the lynnwood pick n pull and sure enough, the 6.5 they had still had the single crossover, in perfect shape. Thanks all for the info you gave on the previous posts! Oh and WIll, I checked the other 6.5 they had there from a 1995 but it was already gutted to the block/heads...

No worries Will. Does the rare '96 rear facing single tstat also block off the bypass? Never looked into that one... Oh and the part number for the single early 6.5 crossover is 23500374... I have it memorized from looking for it for so long lol

Still looking for the early 6.5 single tstat crossover with the bypass blocking tstat...

Actually, it does have the 130gpm water pump. When I ordered it, I had the option for the single, vs dual thermostat versions and I ordered the one for the dual stats. You can see how the bypass blocking single or dual stats would give me a lot better clearance between the belt and fan... I...

The dual stat would be cake to swap in except the throttle bracket... I wouldn't have to make a new one... no cruise or anything, just the pedal cable... but I heard the single with bypass block is best...

I'll get some pics up tonight... photobucket and mobile os's don't mix... Here is the swap thread of my 6.5... it started as NA but its turbo'ed now. http://www.ifsja.org/forums/vb/showthread.php?t=179517&page=2 I didn't do writeups on the nv4500/np205 swap, or my axle swaps... moved the rear...

When driving around, it stays between 175-185... 175 in the morning and 180-185 in the evening but temps are between 45 and 60 right now... it's more for hose routing than anything... with the stock 6.2/military crossover, the upper hose is exceptionally close to the belt and fan...

I seem to have found some pics showing the inside of the dual stat crossover and its just open all the time... Might as well just keep what I have in there now... Back to needing just the single... GM part 23500374

Ok, its just reversed to flow out towards the passenger side. After looking at a few of the other pics, I dont have the high idle solenoid and my throttle cable bracket looks different than the one in those pics... Seems like an easy enough swap. Just need to find one for a reasonable price. Are...

Hmmm flipped it upside down... I wonder how that could be done... I tried finding the post about it but no luck...

I wonder how tough it is to get the dual tstats on it...

Here is a pic from the diesel page... Its the one on the right... http://www.thedieselpageforums.com/photopost/data/500/crossovers.jpg And it uses the outlet on the right of the pic you posted.

Yea, thats the same one I have on mine now. The single I am looking for was on the mechanical injected 6.5's from 1992-1995. It used the high flow thermostat with the block off for the bypass. The thermostat itself points vertically directly above the bypass hose. The one I have is awfully...

After researching and looking at the dual thermostat setups, either the single or dual setups would work... I know the dual setups are commonly available as well.

I will try to describe the one I need. The thermostat is directly above the bypass and points vertically. The outlet bolts on and points forward, slightly to the left (drivers side). I think th gm part number is 23500374

I was not aware there was one for 1996 that was different. Do you have pictures of them? I know the 6.2 used 1 high flow thermostat without blocking the bypass...

I am looking for the single thermostat water crossover on the 6.5 turbo diesels. Thanks

Well the 6.5 did exceptionally well on the drive to everett WA... Soldiers Summit was a little tricky, I did let it hit 215F once for about 5 mins doing 65 up the 6% grade, but once on the downside, it immediately dropped to 185... Most of the rolling hills between Salt Lake City and Boise were...

Yea, I had to relearn how to drive with the turbo but I think I have it down now. When needing to pass on the highway, there is very little haze for a second or 2 then clears. It's running a db2831-5149 pump. It's a 170hp N/A military 6.5 pump. It's the same as the 4911 pump just turned down...

Well it's all up and running great. I turned the fuel screw up 1/8 of a turn when it was n/a with the dual 3" and intake mods and it smoked very little at wot... I just turned it up another 3/8 of a turn, maybe slightly less, and the the boost has maxed out at about 15 psi. My wastegate is...