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Old 09-05-2023, 04:04 PM   #1
hevy_chevy67
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1970 Blazer Build

After wanting to have a Blazer for a very long time, I've lucked out and one has fallen into my lap. Pure luck I stumbled across it and the owner was willing to sell it.

This pic is from the day I looked at it. Owner and I agreed on a price and I was going to come back in a couple weeks once he cleaned up the yard and got it out. He was also going to take the top off and keep it as he has another K5.

Other then the two diff's, there isn't much left for drivetrain and running gear in this. So I'm going to make it a 2WD. I already have a K10 that rides rough and I like the 2WD look better anyways. So my quick plans are:

- 2wd conversion. Trying to get a hold of Dead End garage so I can throw trailing arm suspension in rather then keeping the leaf rear
- 5.3 / 4l60e swap
- 20" tire and wheels
- 4/6 lowering kit
- Body and paint (the part I do not look forward to)
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e

Last edited by hevy_chevy67; 09-05-2023 at 04:22 PM.
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Old 09-05-2023, 04:10 PM   #2
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Re: 1970 Blazer Build

Last Saturday I went and picked it up. I could barely sleep the night leading up lol. I've wanted one of these for a very long time.

Its a project, but it has good bones. Needs doors replaced and front clip obviously, but will also need new bedsides. Bed will need a couple small patches, but underneath the truck is surprisingly good. From what I've read, these rocker boxes tend to go bad? These ones are intact and appear to be pretty solid.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 09-05-2023, 04:18 PM   #3
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Re: 1970 Blazer Build

Previous owner was keeping the top, but I lucked out again and there was a hardtop for sale on Facebook. Went and picked it up.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 09-05-2023, 04:25 PM   #4
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Re: 1970 Blazer Build

And here is where I am as of Sunday.
Got the tub off and need to start stripping the frame down. Plan is to have it sandblasted in a couple weeks and get it painted as fall is getting close. That will give me all winter to get the suspension, brakes, and possibly motor & trans in place.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 09-06-2023, 07:30 AM   #5
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Re: 1970 Blazer Build

Nice Blazer. A tub with intact rocker boxes is a rare find.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

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Old 09-07-2023, 05:58 PM   #6
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Re: 1970 Blazer Build

Why get rid of the leaf springs? Just do an axle flip to get it sitting better...
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Old 09-07-2023, 09:32 PM   #7
hevy_chevy67
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Re: 1970 Blazer Build

Quote:
Originally Posted by litebulblsc View Post
Why get rid of the leaf springs? Just do an axle flip to get it sitting better...
I like the trailing arm ride better. If I keep leafs, I need to get new leafs anyways and those aren't cheap either. I'm also convering to 5 bolt and have a couple 71/72 trailing arm rear ends ready to go. And in the future if I want to go lower it will be simple.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e

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Old 09-07-2023, 10:22 PM   #8
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Re: 1970 Blazer Build

Cool project. Congrats.

FYI...some of those 4WD parts (even the little stuff) would be of value to others. Don't scrap em. You might be surprised how much of it is 1970 only and harder to come by.
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Old 09-07-2023, 11:30 PM   #9
hevy_chevy67
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Re: 1970 Blazer Build

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Cool project. Congrats.

FYI...some of those 4WD parts (even the little stuff) would be of value to others. Don't scrap em. You might be surprised how much of it is 1970 only and harder to come by.
I keep everything lol. Last week I junked a bad hood and I totally felt bad doing it lol. Nothing from this Blazer is getting tossed.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 11-06-2023, 11:51 AM   #10
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Re: 1970 Blazer Build

Nice work so far. Good luck, Rg
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'68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675
'69 ('70?) 2wd Blazer
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'73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203
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Old 11-17-2023, 02:14 PM   #11
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Re: 1970 Blazer Build

This thing is to starting to snowball......

I purchased a pair of new bedsides, but now looking at the bed floor I'm really leaning to changing it too. Its beat up near tailgate area, and needs some patches here and there. Bedsides are coming off regardless, so thinking I should just bite the bullet on it.

I have no good usable front end sheet metal. I'm going to be picking up a set of new fenders, so I've decided to make it a 68 Chev front end. Found a nice original 68 rad support already for the swap.

Also swapping out trailing arms and crossmember for these ones made by a local guy. They have a built in 2" drop.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 11-17-2023, 07:46 PM   #12
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Re: 1970 Blazer Build

The long term fourcast for Alberta is a snowy winter
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Old 11-26-2023, 02:15 AM   #13
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Re: 1970 Blazer Build

That's a good find. I'm a little more of an originality guy than your plans call for, but at least this one won't be rusting away anymore. I see you've got one of the 20s ready to go. Are you going to get others with similar patina?
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Old 11-26-2023, 07:10 PM   #14
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Re: 1970 Blazer Build

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That's a good find. I'm a little more of an originality guy than your plans call for, but at least this one won't be rusting away anymore. I see you've got one of the 20s ready to go. Are you going to get others with similar patina?
Lol, still on the lookout for three more just like it. Not holding my breath though haha
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 11-26-2023, 07:15 PM   #15
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Re: 1970 Blazer Build

Also scored the last remaining difficult to find pieces
. The front seats are 73 75 blazer buckets but super pumped about the rear seat I found. Super clean original cover.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
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1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 11-30-2023, 03:56 PM   #16
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Re: 1970 Blazer Build

Quote:
Originally Posted by hevy_chevy67 View Post
Also scored the last remaining difficult to find pieces
. The front seats are 73 75 blazer buckets but super pumped about the rear seat I found. Super clean original cover.
If you want to put original covers on, I sell the side skirts to convert them to 69-72
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Old 12-01-2023, 08:42 AM   #17
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Thumbs up Re: 1970 Blazer Build

That is a '69-'70 rear seat, and it appears gorgeous.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels
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Old 12-01-2023, 11:13 AM   #18
hevy_chevy67
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Re: 1970 Blazer Build

Quote:
Originally Posted by 1rippen6 View Post
If you want to put original covers on, I sell the side skirts to convert them to 69-72
I think I had messaged you about some skirts a few months ago. The seats I had those in mind were turned out to be too far gone to repair, but I'll be in touch soon as I'll need full skirts for these ones.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 08-13-2024, 01:34 AM   #19
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Re: 1970 Blazer Build

its coming along nicely

as mentioned before , i am more of originality kind of guy also
tho , i am digging the custom front bumper . . .

what is on the part(s) list of what is needed for the truck ?
besides the wheel(s) ?
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Old 08-13-2024, 03:54 PM   #20
hevy_chevy67
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Re: 1970 Blazer Build

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Originally Posted by Lokin4AReason View Post
its coming along nicely

as mentioned before , i am more of originality kind of guy also
tho , i am digging the custom front bumper . . .

what is on the part(s) list of what is needed for the truck ?
besides the wheel(s) ?
The list is long, although I have the big items there are lots and lots of little things I'll need to buy before the end. I do have a lot of leftover stuff from building other trucks though.

Haha, that front bumper? Its gone now, it weighed a ton.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 09-25-2024, 01:32 PM   #21
hevy_chevy67
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Re: 1970 Blazer Build

Things are finally going to get rolling on this.

Weather was good this past weekend and with fall coming I decided to primer and put raptor liner on the underside of the new bed floor before it installed.

Front crossmember and controls arms are getting picked up from the sandblaster on Friday. I had them powdercoated. Front disc brake kit and all new front end parts also arrived in the mail this week.

Rounded up my parts I had in my garage and hauled out to the shop where I'm working on the Blazer. Going to start assembly of the new bedsides, fenders, tailgate all shortly. The Suburban came in handy, it was packed right full haha.

Lots to do now.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 10-14-2024, 11:56 PM   #22
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Re: 1970 Blazer Build

Its the most this thing has ever resembled a Blazer in a long time today

Before taking off the bedsides and rear floor, I decided to hang some sheet metal. This thing has been blown apart so I wanted to make sure everything somewhat fits together first.

Really happy with how the hood, grille, and fenders went together. Some tweaking needed yet but pretty close

Doors need some work yet but pretty good fit. Bottom of passenger needs to move in a little bit yet but I don't have any more hinge adjustment so going to have to figure out something there.

All the new metal is Key Parts brand.
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1971 Chevrolet K10 - SWB, 5.3LS, 4L60e
1970 Chevrolet K5 Blazer - Project
1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4
1969 GMC Suburban - 5.3 LS, 4L60e
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Old 10-18-2024, 11:53 AM   #23
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Re: 1970 Blazer Build

Nice build. i will be following along.
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