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Old 11-19-2017, 03:06 PM   #1
vannatta20
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Budget Square Body Build with Gen IV LS power
I did a thread years ago on a budget build ls swap for the 67-72 trucks http://67-72chevytrucks.com/vboard/s...d.php?t=517347

Now its time to put into action everything I have learned over the years.

My dad found this truck for cheap on his way to the lake. It has a SBC and turbo 350 with A/C. Everything is worn out and he wants to daily driver. I now prefer the Gen IV drivetrains due to the much better 6 speed transmission. These have a 4.1 first gear instead of the 3.1 in the 4l60E. They handle good power and will shift up to .300 of a second. We acquired a 2012 5.3 LMG engine and 6L80E 2wd transmission. I have done a handful of gen iv swaps on muscle cars and early trucks. The power is incredible and the ability to roast the tires at will is awesome with stock un-modified engines. This truck will even have cruise control, tap shift, and a/c control all through the Gen iv computer.



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Old 11-19-2017, 03:08 PM   #2
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Re: Budget Square Body Build with Gen IV LS power
The engine mounts are a new design. These give great clearance for headers and use a modern hydraulic filled rubber mount to make a smooth running engine.
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Old 11-30-2017, 04:14 AM   #3
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Re: Budget Square Body Build with Gen IV LS power
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Originally Posted by vannatta20 View Post
The engine mounts are a new design. These give great clearance for headers and use a modern hydraulic filled rubber mount to make a smooth running engine.
I like the idea of the hydraulic mount, but it looks like its welded directly to the front cross member. It also looks like you eliminated the brace that the original mount was bolted to and would triangulate the frame to support upper control arm. Looking at it, I would be worried about flex/deflection on the frame under cornering load from the upper control arm.
Do you have plans to brace the frame?
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Old 11-19-2017, 06:47 PM   #4
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Re: Budget Square Body Build with Gen IV LS power
Cab and body off. My dad will do as much as the work as possible to keep cost down. The entire build included the cost of the truck should be under 10K.

2900$ for the engine and transmission
1800$ for the truck
200$ powder coat the chassis
200$ fuel tank and new pump


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Frame shortened and power coated

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Last edited by vannatta20; 11-19-2017 at 06:53 PM.
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Old 11-19-2017, 06:49 PM   #5
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Re: Budget Square Body Build with Gen IV LS power
Engine and trans fitted.

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Old 11-21-2017, 02:34 PM   #6
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Re: Budget Square Body Build with Gen IV LS power
Man, Yall ain't jokin'! Are you gonna delete the dod?
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Old 11-23-2017, 11:05 PM   #7
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Re: Budget Square Body Build with Gen IV LS power
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Man, Yall ain't jokin'! Are you gonna delete the dod?
Would like to delete it but then it snowballs into a cam swap and spending more$$
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Old 11-23-2017, 11:12 PM   #8
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Re: Budget Square Body Build with Gen IV LS power
Hopefully test fire it tomorrow 😊
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Old 11-21-2017, 09:00 PM   #9
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Re: Budget Square Body Build with Gen IV LS power
Nice! Keep it up!
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Old 11-21-2017, 09:06 PM   #10
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Re: Budget Square Body Build with Gen IV LS power
Very cool, tagging along. Good idea on the engine mounts!
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Old 11-26-2017, 08:13 PM   #11
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Re: Budget Square Body Build with Gen IV LS power
I’ll follow
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Old 11-26-2017, 08:15 PM   #12
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Re: Budget Square Body Build with Gen IV LS power
https://youtu.be/mMSOzuGpyiw

[youtube]mMSOzuGpyiw[/youtube]

Successful first start!

Anyone know how to embed a YouTube video?
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Old 11-26-2017, 09:05 PM   #13
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Re: Budget Square Body Build with Gen IV LS power
Congratulations on the first start. Everything is looking very good.
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Old 11-29-2017, 08:01 AM   #14
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Re: Budget Square Body Build with Gen IV LS power
Ok.. I'm following along as I have a 78 2WD Blazer I think I may do a budget swap on...
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Old 11-29-2017, 10:08 PM   #15
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Re: Budget Square Body Build with Gen IV LS power
That engine seems to sit pretty far forward, Did you have to do that for trans tunnel clearance ?
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Old 11-29-2017, 10:55 PM   #16
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Re: Budget Square Body Build with Gen IV LS power
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That engine seems to sit pretty far forward, Did you have to do that for trans tunnel clearance ?

It is standard position. Same as our last swap
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Old 12-02-2017, 12:02 AM   #17
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Re: Budget Square Body Build with Gen IV LS power
Good point. My dad will probably weld it up to help stop any flex
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Old 12-21-2017, 11:30 PM   #18
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Re: Budget Square Body Build with Gen IV LS power
More progress. LS3 exhaust manifold fit nicely



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Old 12-22-2017, 02:02 AM   #19
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Re: Budget Square Body Build with Gen IV LS power
Do you have a PN for the motor mount you used?
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Old 01-27-2018, 12:45 AM   #20
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Re: Budget Square Body Build with Gen IV LS power
Update nice build
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