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Old 12-10-2013, 04:11 PM   #1
danimal95
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Location: wonder lake ,il
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Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics

This was copied and pasted from my thread over on LS1 tech:
thought some of you may be interested in my latest project swap:1970 K5 blazer 4x4 that I picked up earlier this year.I bought the truck out of Baja Ca. original paint zero rust couldn't pass it up so last Friday I pulled the carb'd 383 and TH350 trans out and started my swap here are the plans:
I have a L92/LS3 that I got from a friend for a song and dance,and a donated 6L80E out of a 2007 Escalade.Decided that wasn't enough so I also scrounged together a set of used Grand National turbos that I will be running as well.
It will be kept 4x4 using a NV241 T-case with a pass front diff drop,I have also ordered the Dirty Dingo complete front replacement cross member and mount kit for the swap,should be here today.
I was able to get the aluminum radiator Precision turbo a/a inter cooler and the dual 4th gen fans mounted as an assembly this past Saturday and my intentions are to have the motor in and turbo fab started by the beginning of the weekend.Here are the pics so far:



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Old 12-10-2013, 04:12 PM   #2
danimal95
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Re: Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics

motor and trans are in,working out the Escalade T-case to be clocked differently for the pass front diff in the blazer.Looks like I can rotate it to be 180 degrees off from factory,Ill have to plug the vent tube,make a new pick-up for the internal pump then drill and tap for a new vent tube and weld a bung on it for the proper fill hole height and level,But it will be bad dog full time AWD!Should have the harness by the end of the week,fuel system is coming together using a 1991 Bronco II tank,fits perfectly btw.By the end of the coming weekend it should be nearly ready to run and turbo fab will begin.
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Old 12-10-2013, 04:12 PM   #3
danimal95
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Re: Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics

turns out the Escalade T-case doesnt have an internal pump in it,so I was able to just plug the existing vent tube and make a new fill/drain plug location and a new vent.The adapter took slight modification with a die grinder to orient the T-case where I wanted it,no big deal,bolted right up and worked perfectly The original trans mount/cross member was used and almost seemed like it was made for the swap,I had to drill 4 new holes in the frame for mounting position and make a stand off for the differance in height between the original and the new mount on the 6L80 very simple.The bronco II fuel tank fits perfectly and was mounted using the original straps rotated 90 degrees with a piece of uni-strut bolted to the frame in the front and 2 new holes drilled at the rear frame cross member and bolted through.The fuel system will be done by this weekend via a small sump at the rear of the tank with 2 externally mounted walboro 255 pumps wyed together.And finally I wwent with the Holley High Ram EFI intake to fill up the engine bay a bit...turbo fab starts soon






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Old 12-10-2013, 04:13 PM   #4
danimal95
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Re: Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics





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Old 12-19-2013, 08:01 PM   #5
low&slow
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Re: Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics

Oh man I got to follow you on this. Twin Turbo. I'm defiantly interested in to see how you get that all plumbed. This is way over my head and is just too cool.
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Old 12-19-2013, 09:40 PM   #6
Super73
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Re: Speed Inc 1970 4x4 Blazer LS3/6L80 TT(budget)Pics

Glad to see my arm twisting got you over here Definitely want to see the build completed. Even though we are going about our twin turbo set up a bit differently, might give me a few ideas for my twin setup. I know the others around here will really dig this.
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49
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