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Old 06-29-2015, 12:14 PM   #1
MetalWorks
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1972 c10 conversion to a LSA powered k20 build thread

We just got this c10 project into our shop "MetalWorks" in Eugene, OR.

We will be taking this stock 72 Chevy 2WD and converting it into a 4x4 that is powered by a new GM Performance supercharged LSA engine connected to a 4L85 transmission.

Check back on our progress...should be a fun one.

You can also see updates at our site: http://metalworksclassics.com/
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Old 06-29-2015, 12:26 PM   #2
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Re: 1972 c10 conversion to a LSA powered k20 build thread

We got busy at the tearing the 72 down right away so it could head off to our in house acid dipping facility.
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Old 06-29-2015, 06:03 PM   #3
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Here is the new drive line...6.2L supercharged LSA engine that delivers 556 horsepower, and a 4L85 trans...
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Old 06-30-2015, 11:54 AM   #4
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Here is the cab when it came back from our acid dipping shop. The cab is very solid and straight, we only had to reform a few small patch panels. The outer rockers were very nice, but we will be replacing the sill plates.
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Old 06-30-2015, 11:58 AM   #5
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Next was removing the 2WD tranny cover in preperation for a 4WD style.
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Old 06-30-2015, 03:50 PM   #6
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Looks like a cool project! looking forward to see more of it...
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Old 06-30-2015, 03:55 PM   #7
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Them Lsa engines are sweet. Debated finding one for our 70 chevelle convertible. This will be a sweet ride. Trevor
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Old 07-06-2015, 02:06 PM   #8
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Re: 1972 c10 conversion to a LSA powered k20 build thread

The rest of the truck's components are back from our acid dipping facility...this is one nice and solid truck...one fender has some old work that reviled itself, but overall the truck is in great shape.
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Old 07-07-2015, 12:37 PM   #9
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Re: 1972 c10 conversion to a LSA powered k20 build thread

We took delivery of the 4X4 chassis we will be using under the 72...looks like a descent stock frame.
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Old 07-09-2015, 10:59 AM   #10
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Subbed! This aught to be fun! I always wondered why there was never a lot of supercharged k20s.
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Old 07-09-2015, 05:25 PM   #11
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Re: 1972 c10 conversion to a LSA powered k20 build thread

A few pics showing the work done to the firewall...we filled in some extra holes, then smoothed off were the heater core was as we are installing a Vintage Air unit.
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Old 07-14-2015, 04:13 PM   #12
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Though the truck's body was very solid, it had some previous work hidden under its paint that had to be addressed. Off to body work next...
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Old 07-14-2015, 09:37 PM   #13
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Very nice build.

You had me at "4x4 supercharged LSA" !
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Old 07-16-2015, 11:49 PM   #14
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Looking good.
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Old 07-23-2015, 05:15 PM   #15
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Test fitted the LSA engine today for clearances...looking good.
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Old 07-25-2015, 12:47 AM   #16
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Re: 1972 c10 conversion to a LSA powered k20 build thread

This one should be fun
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Old 08-10-2015, 04:38 PM   #17
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Re: 1972 c10 conversion to a LSA powered k20 build thread

I'll try and not bore everyone with body work...but I'll show a little of what happens...here were putting on the first coat of primer.
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Old 08-10-2015, 04:49 PM   #18
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Looks Great. This is one of my favorite builds! Going to be one bad ass street 4x4s....
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Old 08-10-2015, 04:52 PM   #19
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Re: 1972 c10 conversion to a LSA powered k20 build thread

What transfer case are planning on running?
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Old 08-10-2015, 04:54 PM   #20
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Quote:
Originally Posted by puller View Post
What transfer case are planning on running?
Thanks, yeah it's going to be a sweet truck...We will be running a NP 205 transfer case.
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Old 08-10-2015, 04:56 PM   #21
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Re: 1972 c10 conversion to a LSA powered k20 build thread

With components in various stages of body work we test fit the cab to the 4x4 chassis.
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Old 08-12-2015, 05:15 AM   #22
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Re: 1972 c10 conversion to a LSA powered k20 build thread

So What's the plan for T-case that 4L85 is for 2wheel drive. Or are going with a divorce case. love the engine.
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Old 08-12-2015, 11:34 AM   #23
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Re: 1972 c10 conversion to a LSA powered k20 build thread

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Originally Posted by DWilbur View Post
So What's the plan for T-case that 4L85 is for 2wheel drive. Or are going with a divorce case. love the engine.

DWilbur...the Trans and Transfer case have been adapted to work with each other using a kit from Advanced Adapters...sorry, I should have mentioned this before.
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Old 08-13-2015, 02:49 AM   #24
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Re: 1972 c10 conversion to a LSA powered k20 build thread

Nice set up for the T-case. I went with NV4500 and Atlas 4.
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Old 08-27-2015, 05:31 PM   #25
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Re: 1972 c10 conversion to a LSA powered k20 build thread

A new headboard was installed on the truck bed, then the bed was test fit to the cab and frame.
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