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Old 02-08-2014, 03:04 PM   #26
swamp rat
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Re: 70 GMC 4wd version

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Does anyone know of a tank like this but with a 90% fill so I could run a stake fill.

http://www.ebay.com/itm/281261979685...84.m1423.l2649
Dave Boyd frequents this forum and sometime runs group buy discounts.

Here's a link his Chevy tanks, he has side fill or bed fill as well as EFI. He also has his tanks distributed thru different venders.

http://www.fueltankparts.com/replace...evy-tanks.html

This Google search lists a bunch of forum threads on his tanks:

https://www.google.com/search?newwin...50._WjLsxoFw48
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Swamp Rat build thread :
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72 3/4T 4X4
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Old 02-08-2014, 03:58 PM   #27
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Re: 70 GMC 4wd version

Swamp rat I just looked at all those and your thread. Do you have a boyd tank? I seen at one point he made a 4x4 one but dont see it on his anylonger.
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Old 02-08-2014, 05:37 PM   #28
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Re: 70 GMC 4wd version

I'm sure he can still make one for a 4X4.

Yes i have one, i'm not finished with the install tho, i have been battling being sick all winter and its wearing me out, i hope to finish the install this spring. I also don't know a part number and the receipt is buried somewhere, i'm sure if you called Boyd he could provide the info.

EDIT: I should add that being as i have a K20 i think the frame is a bit different from a K10 frame, the distance between the upper and lower flanges are different. Don't know if you have a K10 or K20 frame.

Here's a pic of the install this is with the flanges of the tank bolted to the bottom of the frame, this actually put the 90* fill about 1/4" below the top of the upper frame rail, the only way to raise the tank now is to ether have a welder move the flanges down a little on the tank or cut out the rivets to the cross member, remove it and slide the tank in from the back putting the tank flanges between the frame rails. Or i could just take a torch and heat the frame rail up and bend it down a little to gain a little clearance for the rubber gas hose to keep it from rubbing on the top rail.
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Swamp Rat build thread :
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Old 02-08-2014, 10:47 PM   #29
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Re: 70 GMC 4wd version

Is that the tank he list for a 2wd
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Old 02-08-2014, 11:53 PM   #30
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Re: 70 GMC 4wd version

I dug up the original group buy thread Boyd did, after reading it again yea i think it is a 2wd tank. I got mine a few years ago so there could be some changes thru the years.

The group buys are now thru this thread, contact them to see if its still going on.

http://67-72chevytrucks.com/vboard/s...ight=Group+buy
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Old 02-12-2014, 09:46 PM   #31
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Re: 70 GMC 4wd version

Getting excited, cant wait to get the frame back from the blaster.

These showed up today.

4 inch lift springs






ORD u bolt reversal for the rear



ORD front greaseable shackles

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Old 02-13-2014, 10:55 PM   #32
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Re: 70 GMC 4wd version

Got the frame back from the sandblaster tonight.



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Old 02-15-2014, 01:01 PM   #33
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Re: 70 GMC 4wd version

got the frame primed with mastercoats system, about and hour ill go out and start painting.





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Old 02-16-2014, 05:42 PM   #34
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Re: 70 GMC 4wd version







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Old 02-16-2014, 08:29 PM   #35
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Re: 70 GMC 4wd version

That frame turned out nice!
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Old 02-26-2014, 09:16 PM   #36
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Re: 70 GMC 4wd version

Got the hitch installed last night



Started on the ss brake lines tonight.





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Old 02-27-2014, 12:49 AM   #37
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Re: 70 GMC 4wd version

Lookin great!
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Swamp Rat build thread :
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Old 04-18-2014, 09:39 PM   #38
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Re: 70 GMC 4wd version

http://rs114.pbsrc.com/albums/n277/7...0?t=1397869455
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Old 04-18-2014, 10:42 PM   #39
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Re: 70 GMC 4wd version

427, a good score.
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Old 04-19-2014, 06:25 PM   #40
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Re: 70 GMC 4wd version

been busy, this last month i have been having alot of family problems, but im back at it now. thursday I got the front axle put back together so i rolled it outside friday after work (man that felt good to see it rolling again). After that friday I pulled the engine out of my truck. 468, scat forged rotating assembly, 781 reworked heads, 10.1 compression.

My plan is to clean it up and paint it then swap it in the frame. I am hoping my 800 dollar headers are going to work on the 4wd frame. Time will tell.











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Old 04-20-2014, 01:43 AM   #41
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Re: 70 GMC 4wd version

Nice to have a roller again! Looks great so far.
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Swamp Rat build thread :
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Old 04-20-2014, 12:27 PM   #42
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Re: 70 GMC 4wd version

So what are the plans for the engine or just a clean up and install.
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Old 04-20-2014, 01:35 PM   #43
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Re: 70 GMC 4wd version

That swamp.

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So what are the plans for the engine or just a clean up and install.
Just clean and paint, the engine only has 3000 miles on it
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Old 04-20-2014, 01:58 PM   #44
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Re: 70 GMC 4wd version

So what is the build on the engine, hp, internals, love big blocks, build and install them in everything I can.
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Old 04-21-2014, 12:27 AM   #45
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Re: 70 GMC 4wd version

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So what is the build on the engine, hp, internals, love big blocks, build and install them in everything I can.
Not 100 percent on power numbers, I did folow a build from a magazine when I built it, should be just shy of 600 ft lbs, and around 475 hp.

Full scat rotating assembly, 10.1 compression, 781 reworked gm heads, roller rockers, gasket matched intake and exhaust.
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Old 04-21-2014, 08:08 PM   #46
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Re: 70 GMC 4wd version

Your engine build is simular to mine, I did a lot of porting on the heads and intake and a bit on exhaust too.
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Old 04-26-2014, 01:59 PM   #47
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Re: 70 GMC 4wd version

Well I tried to stap the engine and trans this morning, it didnt go very well. The oil pan hits the crossmember pretty bad. It hits and I still need the motor to go foward about and inch for the mount to line up. So I dont know what im gonna do now, either new pan or diy4x4 crossmember, but have heard diy4x4 crossmember doesnt fit well either.
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Old 04-26-2014, 02:43 PM   #48
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Re: 70 GMC 4wd version

What is the pan from a 2wd or 4wd, believe they are different in Big block just like small block, could just swap the pan...or start cutting a notch in the crossmember, have done that before, cut a piece out flipped it upside down and welded it back in, easy.
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Old 04-26-2014, 02:58 PM   #49
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Re: 70 GMC 4wd version

Man im not sure what pan it is im wanting to say late 70s truck pan.

Im thinking about this pan because mine doesnt have the dimples and thats where it hits.
http://www.ebay.com/itm/310935281375...84.m1423.l2649
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Old 04-26-2014, 04:32 PM   #50
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Re: 70 GMC 4wd version

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Originally Posted by 70stroker View Post
Well I tried to stap the engine and trans this morning, it didnt go very well. The oil pan hits the crossmember pretty bad. It hits and I still need the motor to go foward about and inch for the mount to line up. So I dont know what im gonna do now, either new pan or diy4x4 crossmember, but have heard diy4x4 crossmember doesnt fit well either.
As on my truck, and from my understanding the factory 4X4's all use the rear set of holes in the frame for the engine mounts, not 100% sure about big blocks tho. heard it was to clear the cross member or clearance for the front axle..

This also means the use of a small diameter stock sized distributor to clear the firewall.

I have not studied this in depth but its what i have gathered from this forum.

I don't know if the 4X4's cross member is different. but if necessary you could probably find one local or maybe here on the parts board and install it. or maybe you can just drill a couple holes and move it?
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Swamp Rat build thread :
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72 3/4T 4X4
4" BDS Lift
33" BFG's
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