Bart the V8 4wd/Awd Astro

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Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 20th 2020, 1:48am

This is Bart the Destroyer story, starting half way in. I will post earlier pictures here in the future. But for now this is where he is.
A 5.7 vortec with a cam and a few other goodies and a tune, with a NP 246 Transfer case. Starting on the front drive shaft and exhaust in my mock-up frame before pull Bart into the garage. Most likely after Christmas.

Some things I have done already 5" lift, 17" wheels, roof rack, spare tire carrier, and Bumper.

Things on my list Front bumper and rock sliders.
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Look at all that clearance with a stock truck oil pan.
DSCN3049.JPG
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Re: Bart the V8 4wd/Awd Astro

Postby Big_kid » December 20th 2020, 5:42pm

NICE!
95 Astro Conversion of unknown irrelevant lineage
We have enough youth. How about a fountain of smart?
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Re: Bart the V8 4wd/Awd Astro

Postby dcsleeper » December 20th 2020, 5:46pm

nioce!

what year donor?
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Re: Bart the V8 4wd/Awd Astro

Postby tungtide » December 20th 2020, 10:53pm

Sweet !!! Why the 246 enlighten me I thought the 233 was the way to go.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 21st 2020, 11:39pm

tungtide wrote:Sweet !!! Why the 246 enlighten me I thought the 233 was the way to go.


The 246? Because I haven't seen one in an astro yet. And I wanted it all.. 2wd, 4 low, 4 hi, and 4 auto. I know I could have done a 236, still may but thought what the hell Ill try.
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Re: Bart the V8 4wd/Awd Astro

Postby AstroWill » December 22nd 2020, 12:07am

Did you see this from racrx7 over here: http://astrosafarivans.org/bb2/viewtopi ... 58&t=10182

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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 22nd 2020, 12:27am

AstroWill wrote:Did you see this from racrx7 over here: http://astrosafarivans.org/bb2/viewtopi ... 58&t=10182


I did. I didn't want to tear into the TC that far. With the engine lift I did not have to think about clocking the TC or notching the cross member. I will need little drive shaft work, but the drive line shop can do that.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 23rd 2020, 9:24pm

I didnt mention earlier that the Engine, trans and transfer case are all out of a 99 Tahoe. So I found the part needed to make the Tahoe front driveshaft bolt up to the astro front diff. Should be here after Christmas. Best part no need to lengthen the driveshaft. Just concerned the oil filter my be a little close to it .75 inch.
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Re: Bart the V8 4wd/Awd Astro

Postby markmitch » December 23rd 2020, 10:13pm

what were the headers originally for? make and model and part number please.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 24th 2020, 1:03am

markmitch wrote:what were the headers originally for? make and model and part number please.


TBI c/k 1500 pickup. Im not sure if they will fit your build, I raised my engine and trans 2.25 inches.
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Re: Bart the V8 4wd/Awd Astro

Postby markmitch » December 24th 2020, 2:24am

ok Thank you, I raised mine 1/4 inch just to get more room from oil pan to front differential.
Also my full sized oil filter is 1/8" from the front drive shaft I may have to use a relocation kit.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » December 24th 2020, 9:59pm

markmitch wrote:ok Thank you, I raised mine 1/4 inch just to get more room from oil pan to front differential.
Also my full sized oil filter is 1/8" from the front drive shaft I may have to use a relocation kit.


Ya i think 1/8" is to close. Have you looked at 95-96 chevy Caprice oil filter adapter? Pushes it towards the engine more.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » January 17th 2021, 3:22pm

Sorry nothing in a few weeks, just waiting on some parts to arrive. They did and now just a few days from getting it all back together. Did get the Tahoe front drive line set up and the stock length is just right. So far putting the NP 246, no different TC adaptors or drive line modification other than a conversion ujoint.
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Re: Bart the V8 4wd/Awd Astro

Postby markmitch » January 17th 2021, 4:03pm

I bought a oil filter relocation kit from summit racing but I have to bend some elbow type pipes to get it where I want it.
I will take pictures after I get it installed. Right now I have the subframe pulled back out to weld up my exhaust Y pipe and replace the upper control arms. After that it will be bolted back in for good.(I hope)
Great project you have there glad to see it coming along. Just a thought: I used to build off road rigs and have a buddy back in New England that still does them for a living and we both agreed on one thing. Bigger wheels equate to smaller sidewall tires which is not a good thing for any off roading. The sidewall takes the beating and protects the vehicle from the beating. Just think about that.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » January 17th 2021, 4:42pm

I agree on the tire and wheel size. One thing I am looking to do down the road a bit is a Ford 8.8 rear axle. Or just do a sfa swap and do a matching real axle, not sure what way I will go yet. When I do I want to see wheel options in 15 or 16 again so I can get more tire and less wheel. 15" tires dont offer much for options.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » January 19th 2021, 12:54am

Worked on the exhaust flanges cut them out of 3/8". Drilled the holes, perfect first try. Modified the Tahoe and Astro dip stick tubes painted and installed. Came out good.
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Cut the flange out
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Test fit with duct tape
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » January 19th 2021, 1:18am

Few pics of other things Ive done to Bart. Raised the rear axle shock mount. Huge difference for clearance.
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Re: Bart the V8 4wd/Awd Astro

Postby Bigforkg [OP] » February 3rd 2021, 4:53pm

Did some more work on Bart. Sorry I get caught up in doing things and forget to take pics. Painted the frame, put the drive train in and back under the van.
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DSCN3147.JPG
Pulling the engine and frame out.
DSCN3150.JPG
its out.
DSCN3159.JPG
Cleaning it up.
DSCN3168.JPG
Painted and drive train back in.
DSCN3170.JPG
DSCN3176.JPG
Back in
DSCN3181.JPG
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Drivers side
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The 246 TC
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Re: Bart the V8 4wd/Awd Astro

Postby Rockridge » February 3rd 2021, 6:05pm

Awesome job so far.
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Re: Bart the V8 4wd/Awd Astro

Postby markmitch » February 3rd 2021, 6:15pm

When you welded the shock mounts on the axle did you do it with the assembly in it or not I ask because I was told one should never weld the rear diff with the guts inside of it due to the heat hurting the bearings and seals. I wish to do some welding on one in the future to change out the way GM designed the leaf spring attachments.
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