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Old 01-01-2014, 07:11 PM   #1
69cunningham
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Lss3

The time has come for the restoration of my 69 short stepside. Hereís a picture of it in 1981 with a fresh paint job.

I bought it in 1977 to drive to high school. It originally had a 307 with 3 on the tree, but by í80 they had been replaced by an SS Chevelle 350 backed up with a Corvette 4 speed.
In 1982, the truck was disassembled for a complete restoration. The time and money wasnít available so it sat in storage for the next 32 years.
Iíve collected a few parts for it over the years. The most important is the LS3 out of a 2010 Camaro. It was pulled out with 4 miles on it for an LS7 swap.

(Donít ask about the Jeep in the in the background.)

Some of the parts being reunited after a very long separation. The engine is mounted using 911 GEN III conversion mounts from Early Classic.

The stock mounting location leaves more gap between the firewall than I would like. I slid it back 2 inches and will eventually drill new mounting holes.

The transmission is a T56 Magnum from American Powertrain.
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Old 01-21-2014, 10:13 PM   #2
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Re: Lss3

Transmission Mount Progress:

The crossmember is made from 1X2 1/8" wall tubing. Braces are included to stiffen the frame so the cab won't flex out the top.

Purchased a stock type rubber transmission mount for a 1972 Camaro from Napa auto parts, 620-1024. This mount was used in many GM vehicles up into the 80ís.
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Old 01-21-2014, 10:16 PM   #3
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Re: Lss3

Sweet project and power plant..
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Old 01-21-2014, 10:22 PM   #4
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Re: Lss3

I am tuned in for this build. Nice score on the motor and transmission.
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1972 C10 SWB LS1/T56 6 speed trans/4:56 posi with 5.5"-7" static drop/Boss 338 Wheels 18"x20"

My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=424609.

My first start up http://youtu.be/R899YQ1OcjU
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Old 01-21-2014, 10:22 PM   #5
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Re: LSS3

Fuel Tank Work:
The tank is a Boyd Welding Special EFI A1000 aluminum fuel tank. I had Boyd not include provisions for the fuel level sender or fuel pump.

I am customized it to hold an in tank fuel pump from a 2012 Silverado fuel pump, MU1949. The pump was shortened to fit the tank.
I made a fuel pump clamping ring. It will need to be welded to the tank.
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Old 01-22-2014, 01:55 AM   #6
uxdesigner
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Re: Lss3

Amazing start, can't wait to see more. Any info (part #) for the fuel ring/o-ring?
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Old 01-22-2014, 11:16 AM   #7
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Re: Lss3

The O-ring came with the 2012 Silverado fuel pump. RockAuto lists it as an AC Delco G41 (22682111).
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Old 01-22-2014, 12:16 PM   #8
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Re: Lss3

Awesome project. I'm in. Love the powerplant and tank.
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Old 01-22-2014, 01:24 PM   #9
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Re: Lss3

Very good start.
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Old 01-22-2014, 01:47 PM   #10
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Re: Lss3

Innnnnteressssting..... I'm in. Nice motor!
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Old 01-22-2014, 01:50 PM   #11
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Re: Lss3

will you have to use a high hump to clear this tranny?
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Old 01-22-2014, 01:53 PM   #12
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Re: Lss3

I am currently looking for a high hump. It doesn't look like it there is enough clearance, but I haven't put the cab on since I got the trans.
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Old 01-22-2014, 05:33 PM   #13
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Re: Lss3

very good. thank you. that is what i was guessing..... i like your project so far... keep it up... maybe the weather will get warmer soon.
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Old 01-25-2014, 05:10 PM   #14
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Re: Lss3

I just tried setting the cab on the frame to see the clearance to the transmission. I definitely need a high hump transmission cover. It might work if I were willing to slide the engine forward and tip the back of the trans down, I would rather have the drivetrain where I have it.

Anyone have a good high hump?
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Old 01-25-2014, 05:37 PM   #15
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Re: Lss3

I installed the same transmission and used a high hump. It fits very well. I did have to notch the cab floor to clear the top of my transmission because I moved my engine back a couple of inches. Keep the pictures coming your build is looking good.
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1972 C10 SWB LS1/T56 6 speed trans/4:56 posi with 5.5"-7" static drop/Boss 338 Wheels 18"x20"

My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=424609.

My first start up http://youtu.be/R899YQ1OcjU
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Old 01-28-2014, 09:43 PM   #16
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Re: Lss3

I got the fuel pump clamping ring welded in. Iíll try to fit the tank to the frame this weekend so I can get the tank powder coated.
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Old 02-04-2014, 06:16 PM   #17
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Re: Lss3

Very nice!
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Old 02-04-2014, 07:27 PM   #18
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Re: Lss3

Looks like a cool project. I like your trans crossmember.
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Old 02-04-2014, 08:52 PM   #19
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Re: Lss3

Nice welding on the tank.
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Old 02-04-2014, 10:37 PM   #20
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Re: Lss3

Nice stuff going on here. Cant wait to watch some building! Wish I could find an LS3.


Where is Windor? Unless you meant Windsor over by Santa Rosa?
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Old 02-05-2014, 12:47 AM   #21
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Re: Lss3

Oops! No one said that I could spell. It's Windsor, near Santa Rosa.
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Old 02-08-2014, 03:49 PM   #22
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Re: LSS3

Mounting the fuel tank:
When it comes time for final assembly on the truck, the fuel tank area is going to be very congested with the tank, hitch, bumper and bed all competing for the same area. To allow the tank to be installed without access to the top of the mounting bolts, I made bolt plates. They drop in to the top through existing holes in the frame. Rubber pads and nylocks will be added later.

I will need to notch to top of the frame to make room for the fuel filler hose.
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Old 02-18-2014, 02:17 AM   #23
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Re: Lss3

Updates?? It's been a long 9 days...
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Old 02-18-2014, 01:39 PM   #24
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Re: Lss3

Nice project. You're going to love the LS3.
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Old 02-18-2014, 01:55 PM   #25
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Re: Lss3

Looks like a cool build.
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