6 Bolt swap coolant lines

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Okay, I was going to add to another post, but it would not let me. I took a break during school semester from doing my 6 bolt swap (89) w/ air oil cooler. Well when hooking up my last line I found this, and now I am assuming something is a big miss. I am thinking I am missing the connection comming out of the head. I just want to make sure. I have been trying to look at profile pictures, but I can not come close to seeing it. I also was trying to go off this

http://www.dsmtuners.com/forums/cyl...nfused-water-lines-6-bolt-swap-e-iii-16g.html

but it seems he has a different thermostat housing then mine??

The end that obviously doesnt have a hose attached where does it go. Turbo is a Evo 16G, the other coolant line coming off the turbo is attached on the water pipe.

 

[TALONTRAX]

This happened to me also on my swap. I re-used my 2G head & water pipe which had all the original small coolant lines for the oil filter housing cooler & turbo cooler lines. Howevwer, the 6 bolt block is missing 1 of the provisions on the block that the 2G block had for a return for them. What I did was, I capped off the end on the water pipe, & used 2 t-fittings, 1 in each heater hose with reducers to run a coolant circuit to the turbo coolant lines. I hope this helps . . .

 

[KeelesKustome]

so what exzactly did you do to use the 2g head on the 1g block?

did you just have to bore out the stud holes bigger?

if so what compression did this make?

 

[TALONTRAX]

yes I did expand the head stud holes to 12 mm to accept the larger 6 bolt studs, however, now ARP makes a tapered stud kit to use to retro-fit 2g heads to 6 bolt blocks with no modification to the head. This combination yeilds 8:8-1 compression with Ross forged pistons on a stroker platform. The smaller ports of the 2G head(mine are mildly ported) equate to higher velocity, which compliments the stroker`s mid-range torque abilities.

Ok - enough about all of this - I don`t want the mods to come down on us for hijacking the guy`s original thread . . .

 

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Well the thing is...the block and head are 1g's, the water pipe is too, and the lines coming off the turbo are brand new water return/supply lines. But I do understand what you are saying and might try doing that.

My big question is, what is the hole that is drawn with a red circle on the head?? is there suppose to be a fitting that goes there??I noticed something coming off the the picture on the link. So do I have to get the 2 red circles attached.

Also I circle the 2 holes on the thermostat green, because i first checked those and they both are block??

 

[Jeff99GS]

Looks like you may have a 1g NT thermostat housing. They do not have the ports for the coolant. The holes are already there ing the casting you just need to drill and tap them to fit a barb type hose fitting and thread in some brass barbs from home depot.

I think you will need to drill and tap out the bigger hole that you circled in green.

The hole in the head that you circled in red is for oil to the turbo...but you have a NT head there so its blocked off. I assume you're getting oil feed off the oil filter housing now?

 

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Alright, Well I will look around for a 1GT one, but still what is the red circle coming off the top of the head??

 

[Jeff99GS]

Alright, Well I will look around for a 1GT one, but still what is the red circle coming off the top of the head??

That is the oil feed port for the turbo on a 1g. Since you have a NON turbo head that port is blocked off. You can use it by removing that block off screw that goes in from the front of the head.

Did you switch the intake cam in that head?? The NT intake cam is different.

 

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Yea the whole head was redone, BC 272 cams, bronze valve guides, tit springs and retainers. Okay, so that is the oil supply then to the turbo, gotcha.I knew I should not of took a break from working on this.. It was spending too much time though with school.

So since I am still using the feed off the oil pump, I wont even have to use that right??

 

[Jeff99GS]

You're probably getting oil at the oil filter housing right now. So NO you don't need this port in the head.

You just need to get a New thermostat housing off a 1g Turbo or drill and tap the holes in the one you have now.

 

[fastclip]

Hey I was wondering could I actually just tee into the coolant line that goes to the heater in the back of the thermostat??? Would that work??

And if so, which one will I want to tee into with the heater lines??? the to or from?