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#26 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
I also tried the transfer case side mount but it is was off. Keegan yours looks like it is taller. I have pictures of what mine measures if anyone has one that they can verify if this is the wrong mount.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#27 |
Senior Member
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Location: East Tennessee
Posts: 2,109
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Re: 72 blazer ls swap
Thanks...much appreciated...!
I think I have a TC mount from a '71 if I can find it....I will measure it. I'm using a NP241 TC so I won't need it.
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1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. ![]() |
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#28 | |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,158
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Re: 72 blazer ls swap
Quote:
Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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#29 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
To be honest I haven't thought that far. I was hoping the factory hose would connect to the tank. Maybe Keegan can tell someone how he did it.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#30 | |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,158
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Re: 72 blazer ls swap
Quote:
Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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#31 |
Senior Member
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Location: Greencastle PA
Posts: 6,710
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Re: 72 blazer ls swap
Yea I would say yours is short
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#32 | |
Senior Member
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Location: Lee's Summit, MO (KC)
Posts: 742
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Re: 72 blazer ls swap
Quote:
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-Keegan- '72 Jimmy 4x4 - 5.3/4L65E/NP205 swap http://67-72chevytrucks.com/vboard/s...d.php?t=663780 |
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#33 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
OK I know it's been awhile since I've posted. I now have the brakes plumbed in, axles painted, brakes rebuilt and the fuel system roughed in.
Fuel system: 87 blazer tank and sending unit Acdelco ep381 fuel pump with sock (can be ordered from a 95 s10) Dorman 3/8" poly lines and connectors Dorman 5/16" poly lines and connectors Tanks fuel filter FF-10 (summit TNK-FF-10) Dorman 3/8 and 5/16 steel line Like most people have done I used the 87 blazer gas tank with the baffles. I showed in an earlier post how I modified the 87 sending unit by cutting off the flare nut, swagging the adapter lines and brazing them together with 45% silver braze. After some paint I installed the Acdelco fuel pump which fits right in the basket. After much searching at the local auto parts store I found summit was the only place I could find a 3/8" in and out fuel filter and it comes with a mounting bracket. Also since this is the first time I've used the poly fuel lines, I wrapped the lines with braided wire loom to help prevent it from rubbing through. As for installing the ends on the poly lines I did not want to purchase the install tool to do 6 fitting so I used the caulk gun method. Do some experimenting with it as I found it necessary to move the flare block a few times to make one fitting.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#34 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Since the frame is almost as far as it can go it was time to disassemble the truck. Once my buddy's lift frees up I will be pulling the body off.
P.s when I bought this true it was advertised as fully restored. I guess restored is a loose term
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#35 |
Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,500
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Re: 72 blazer ls swap
How do like those poly lines? I'll definitely use them again.
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#36 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
I like them, they are very quick and easy to install! Plus the fact that they will never rust out. I was a little worried about them rubbing through but hopefully the wire loom will eliminate that issue. Thanks for the suggestion
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#37 |
Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,500
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Re: 72 blazer ls swap
For what it's worth. For extra safety, I also tie wrapped the quick disconnects on the feed and return lines at the engine's fuel rail. I din't want to rely solely on the plastic clip to hold the line on, because it if should ever pop off with the engine running it could cause a fire. Just peace of mind IMO.
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#38 |
Registered User
Join Date: Nov 2013
Location: Suffield CT
Posts: 55
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Re: 72 blazer ls swap
I ran the poly line in my LS Wagoneer swap. You are correct to secure the ends, They will not take any dangling load off the fuel rail. In a rush to get it on the road I did not secure the fuel line to the fire wall maybe 18-24 inches and it popped off maybe 18-24 inches. luckily no fire. I went AN fittings from the fuel rail to the filter Then ploy to the tank. As fair as the filter goes The C5 vett filters have a built in regulator witch makes life easier running one one line to the motor.
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#39 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Last Wednesday I drove the blazer over to my buddies house and took the the body off the fame. After a week of scraping all the undercoating and grease off the bottom of the truck and to my surprise no rust in the floor boards, just the rocker boxes. I painted the bottom with por 15 for protection.. After stripping the firewall I learned how to paint with single stage paint. I think it turned out pretty nice. Put the body on the new frame today but stI'll needs to be bolted down. As Smitty and Keegan said I did have to space the gas tank down. I found a piece of 1" square stock aluminum and installed it as a spacer. I tried to picture it before I set the body fully down. Sits a little high but I think it will look good with the top off. I may need new taller garage doors now.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#40 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Well I figure it's about time I update this build. After having a busy spring the blazer did not get done by my estimated time of memorial day but I did have it running by the 4th of July.
So because of time I opted for a wiring harness from bp automotive. This harness is layed out very nice with all wires labeled. The only thing I would suggest is calling to place the order instead of doing it online. I ended up with the wrong injector connectors due to not knowing it was a flex fuel motor. I ran the harness through the firewall behind the passenger side fuel rail and made a bracket (shown) that allowed me to mount the computer and fuse panel right under the glove box. As for the throttle cable, I used the one off the suburban and it fits great. You will barely have to ream the hole in the firewall and then just make a slot in the gas peddle for the cable to slide into it. I also used the lokar shifter linkage which took a lot less time to install than expected. I reused the stock radiator that was in the blazer and uses the radiator hoses off the suburban. I trimmed a few inches off the lower one. Also I drilled and tapped the water pump to connect the steam ports to.. As for fans I bought a 2004 grand cherokee fan and put it into the stock shroud. Note that the 2000 to 2003 are single speed and the 2004 is a 2 speed motor. I have yet to have it bring on high speed. The cold air intake was a part I found at a swap meet. I believe there's a part number on it if anyone's wants me to lookeep but I know it was for a carb setup. Then just a filter and boots from summit.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#41 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Sorry not sure why the one picture is upside-down . New carpet was installed along with some insulation
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#42 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Now with the top off the new softtopper was fitted. It's 90% done at this point but I think inner fenders are optional lol. Once I get it cleaned up I'll take some better pictures.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#43 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,158
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Re: 72 blazer ls swap
Good work brother!
Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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#44 |
Senior Member
![]() Join Date: Apr 2006
Location: Yuba City, Ca
Posts: 1,923
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Re: 72 blazer ls swap
Did you install the DD engine crossmember forward to accommodate the overdrive? I ask because I am installing a 4l80e with an ls3 and definitely have to come forward with mine to keep the tcase in the stock position.
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Kirk 72 Blazer CST 4wd highlander 66 Nova |
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#45 |
Registered User
Join Date: Sep 2016
Location: Downingtown, PA
Posts: 53
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Re: 72 blazer ls swap
Ya the engine has to move forward due to the transmission being longer I believe. I did a few mockups with mounting the t-case where it belongs to see where I needed to drill for the new crossmember. I can take a measurement if you would like, just let me know.
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Anthony 1972 K5 4x4 1969 Camaro SS 1987 Grand National 1985 Cutlass |
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#46 |
Senior Member
![]() Join Date: Apr 2006
Location: Yuba City, Ca
Posts: 1,923
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Re: 72 blazer ls swap
A measurement would be great. Did you simply slide the engine forward on the mounts or did you slide the crossmember forward? Since I’m going with a 4l80e/np205 in mine I am probably going to be moving the engine another 3-4” forward compared to the 4l60. I went this route for the reputation the 4l80 has to hold up to higher horsepower since I’m using an ls3 for my build. What did you go with for headers/manifolds? Any pics of the setup?
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Kirk 72 Blazer CST 4wd highlander 66 Nova Last edited by Blazerowner; 11-06-2017 at 04:30 AM. |
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#47 |
Senior Member
![]() Join Date: Mar 2004
Location: Lee's Summit, MO (KC)
Posts: 742
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Re: 72 blazer ls swap
That is awesome. Love the setup and wheels
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-Keegan- '72 Jimmy 4x4 - 5.3/4L65E/NP205 swap http://67-72chevytrucks.com/vboard/s...d.php?t=663780 |
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#48 |
Registered User
![]() Join Date: Feb 2012
Location: Salado, Texas
Posts: 1,417
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Re: 72 blazer ls swap
Do you have any photos of what you did with your brake lines?
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Just trying to figure this out... 1970 SWB Step-Side http://67-72chevytrucks.com/vboard/s...d.php?t=552980 1970 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=584499 1970 SWB One Owner Step Side 6.0 LY6/6L90 http://67-72chevytrucks.com/vboard/s...d.php?t=617630 Junkyard's 1971 short wide http://67-72chevytrucks.com/vboard/s...86#post7531186 |
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#49 |
Registered User
Join Date: Dec 2013
Location: So Cal
Posts: 680
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Re: 72 blazer ls swap
Running adapters on them new style wheels?
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