The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-14-2015, 03:22 PM   #1
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Quote:
Originally Posted by fast70swb View Post
The temples stil available for 25?
Yes, PM sent
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 06-14-2015, 06:04 PM   #2
engairuph
Registered User
 
Join Date: Oct 2014
Location: D'Iberville, MS
Posts: 449
Re: 67-72 Electric speedo

Interested in template also
__________________
Ralph L. Jasper

69 4x4 Suburban PTO winch(NAVY)
13 GMC Ext cab
12 Ford Fusion SE(wife)

MAI
Interior shop

Last edited by engairuph; 06-21-2015 at 05:59 PM.
engairuph is offline   Reply With Quote
Old 08-25-2015, 09:23 PM   #3
Curtb1971
Senior Member
 
Curtb1971's Avatar
 
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,007
Re: 67-72 Electric speedo

Hey Eric,
Picked up a 97 S-10 cluster at the junk yard today and now I need your template kit. Do you still have any available? Also had a couple questions. Will the LS tach output run the factory tach and is the LS temp sensor the same resistance as the older chevy to run the temp gauge? Been reading your threads for a couple of years and your creativity has inspired many areas of my 71 lsx build. You the man dude
Thanks, Curt
Curtb1971 is offline   Reply With Quote
Old 08-25-2015, 10:51 PM   #4
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Quote:
Originally Posted by Curtb1971 View Post
Hey Eric,
Picked up a 97 S-10 cluster at the junk yard today and now I need your template kit. Do you still have any available? Also had a couple questions. Will the LS tach output run the factory tach and is the LS temp sensor the same resistance as the older chevy to run the temp gauge? Been reading your threads for a couple of years and your creativity has inspired many areas of my 71 lsx build. You the man dude
Thanks, Curt
Yes, they are still available, I will send you a PM with payment details.

As for the tach, they will work with the output from the PCM, but you will need to change the 'tach resolution' in the tune from 6 to 3. LS engines run on a 4 cylinder mode and changing the resolution will double it to an 8 cylinder.

The temp sender has been the topic of MANY threads, but what I usually do if keeping the stock gauge is to use the stock sender that was made for it. This requires drilling and tapping the head to accept the larger sender, but it's not all that hard to do and it's the best way to assure the gauge is going to be accurate.
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 08-27-2015, 01:34 AM   #5
Curtb1971
Senior Member
 
Curtb1971's Avatar
 
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,007
Re: 67-72 Electric speedo

Quote:
Originally Posted by ls1nova71 View Post
Yes, they are still available, I will send you a PM with payment details.

As for the tach, they will work with the output from the PCM, but you will need to change the 'tach resolution' in the tune from 6 to 3. LS engines run on a 4 cylinder mode and changing the resolution will double it to an 8 cylinder.

The temp sender has been the topic of MANY threads, but what I usually do if keeping the stock gauge is to use the stock sender that was made for it. This requires drilling and tapping the head to accept the larger sender, but it's not all that hard to do and it's the best way to assure the gauge is going to be accurate.
Cool, I had a feeling I was going to have to tap the head. I was thinking of putting a bung in the radiator, but that's not as fail safe as monitoring actual engine temp on the other side of the t-stat. Sent the payment lastnight and will post some pics when I get working on the cluster, hopefully sooner then later.
Thanks again,
Curt
Curtb1971 is offline   Reply With Quote
Old 09-09-2015, 08:47 PM   #6
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: 67-72 Electric speedo

Hi Curt, ls1nova is correct on drilling the head for the original sender. I was reluctant and my water pump has a nice flat boss on the forward area that worked great. As i've stated in prior posts that when i was done my temp gauge read about 3/4 scale as the LS runs hotter than my original 68 small block. Once it was installed and at 3/4 scale i cut the wire close to the sender, temporarily installed a variable resistor and dialed in some additional resistance and dialed the temp gauge back to 1/2 scale. Removed the resistor and read the value. It was 4 ohms, so i soldered in a 4 ohm, 1/2 watt resistor inline. All is good!
68c10airstream is offline   Reply With Quote
Old 10-24-2015, 07:31 AM   #7
hotrodsinner
Registered User
 
hotrodsinner's Avatar
 
Join Date: Dec 2011
Location: Hanford,ca
Posts: 193
Re: 67-72 Electric speedo

Hey Ls1nova, I'm interested and ready to purchase a faceplate set from you. Can you please PM me the details.
hotrodsinner is offline   Reply With Quote
Old 10-31-2015, 08:52 AM   #8
wannabefastcrf
Registered User
 
Join Date: Dec 2013
Location: NW ohio
Posts: 160
Re: 67-72 Electric speedo

does anyone covert these as a side business? I have the template from LS1NOVA and can get the parts from captianfab but not sure if i have the skills to make this happen myself.
wannabefastcrf is offline   Reply With Quote
Old 11-01-2015, 01:09 AM   #9
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
Re: 67-72 Electric speedo

You might send a PM to member Tbone1964. He is in the business of rebuilding gauge clusters. Also member PGSigns has started rebuilding '64-'66 clusters, but I don't know if he does any other years.

Quote:
Originally Posted by wannabefastcrf View Post
does anyone covert these as a side business? I have the template from LS1NOVA and can get the parts from captianfab but not sure if i have the skills to make this happen myself.
__________________
Power Steering Box Adapter Plates For Sale HERE
Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE
Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE
Hydroboost Mounting Plates HERE
Captainfab is offline   Reply With Quote
Old 11-01-2015, 10:20 AM   #10
wannabefastcrf
Registered User
 
Join Date: Dec 2013
Location: NW ohio
Posts: 160
Re: 67-72 Electric speedo

i started by askeing TBONE1964. He said he doesn't convert them anymore. But thanks for the other name I will look into it.
wannabefastcrf is offline   Reply With Quote
Old 11-19-2015, 10:48 AM   #11
ms2335
Senior Member
 
ms2335's Avatar
 
Join Date: Jan 2009
Location: glenmora. la
Posts: 290
Re: 67-72 Electric speedo

Are you still doing the vinyl faces. Interested in getting a set
__________________
65 Chevy C10 Short Fleet BBW 6.0L/4l80E
68 Chevy C10 SWB 6.0L/4L80E
84 Chevy C10 SWB 5.3/4l60E QA1 Suspension
ms2335 is offline   Reply With Quote
Old 11-19-2015, 11:49 PM   #12
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Yes, I still have them. PM sent
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 12-10-2015, 01:18 PM   #13
kehstr
Registered User
 
kehstr's Avatar
 
Join Date: Mar 2015
Location: Utah
Posts: 750
Re: 67-72 Electric speedo

sorry if i'm just not seeing this, but i can't find the socket ya'll are using for the dash lights, i just seeing lots of different ideas. Can someone who has done the conversion post a link to one that they know works? Thanks for your help in advance
kehstr is offline   Reply With Quote
Old 12-10-2015, 10:01 PM   #14
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: 67-72 Electric speedo

Quote:
Originally Posted by kehstr View Post
sorry if i'm just not seeing this, but i can't find the socket ya'll are using for the dash lights, i just seeing lots of different ideas. Can someone who has done the conversion post a link to one that they know works? Thanks for your help in advance
Post number 321 gives the part number and how to slightly modify them to work. It's on page 13 of this posting
68c10airstream is offline   Reply With Quote
Old 12-10-2015, 10:26 PM   #15
kehstr
Registered User
 
kehstr's Avatar
 
Join Date: Mar 2015
Location: Utah
Posts: 750
Re: 67-72 Electric speedo

thank you for describing where it is
kehstr is offline   Reply With Quote
Old 01-17-2016, 09:33 PM   #16
72longhornTX
Registered User
 
Join Date: Sep 2007
Location: Houston, TX
Posts: 115
Re: 67-72 Electric speedo

PM Sent on getting a set of these.
__________________
Current:
2012 Ford F-250 4x4 6.7 Powerstroke
1971 C-20 2wd 350/TH400

Former:
1979 C-20 2wd 350/TH400, 300+hp. Rattle can paint job
1982 K-30 454/700R4. 4in lift with 37" Goodyear MT/R's Lots of goodies - Trail clean up truck
72longhornTX is offline   Reply With Quote
Old 01-23-2016, 08:31 PM   #17
Curtb1971
Senior Member
 
Curtb1971's Avatar
 
Join Date: Feb 2014
Location: Erie Colorado
Posts: 1,007
Re: 67-72 Electric speedo

Hey Eric,
Any way I can get another speedo decal sent my way. Changing some things around. Thanks
Curtb1971 is offline   Reply With Quote
Old 02-28-2016, 11:43 AM   #18
BustedTruck
Registered User
 
BustedTruck's Avatar
 
Join Date: Dec 2006
Location: Braselton, GA
Posts: 245
Re: 67-72 Electric speedo

Ok. I'm currently doing this right now. I've got a question, when the needle is straight up and down its at 50mph. The sticker I'm putting on straight up and down will be 60 mph. Is the speedometer correction in the tune?
BustedTruck is offline   Reply With Quote
Old 02-28-2016, 12:15 PM   #19
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Quote:
Originally Posted by BustedTruck View Post
Ok. I'm currently doing this right now. I've got a question, when the needle is straight up and down its at 50mph. The sticker I'm putting on straight up and down will be 60 mph. Is the speedometer correction in the tune?
With the '96 S-10 speedo in a 67-72, 60mph ends up being straight up. It has to do with keeping the sweep the same as the older speedo because in the '96 it didn't go as far. As long as your tune is correct for your application, it will be fine, there is no specific changes needed to make the speedo conversion it's self work. I hope that makes sense?
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 02-28-2016, 02:29 PM   #20
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: 67-72 Electric speedo

Hey busted truck, as a past ls1nova cluster customer also remember that when you install the needle it will need to be checked for accuracy. I turned my key on and then installed the needle. It initially was off by a couple mph. I used my laptop while reading the pcm's speedo input. My prior calibration was spot on so i used that for reference, so it took a couple removals/installs to get it right.
68c10airstream is offline   Reply With Quote
Old 02-29-2016, 09:58 AM   #21
kehstr
Registered User
 
kehstr's Avatar
 
Join Date: Mar 2015
Location: Utah
Posts: 750
Re: 67-72 Electric speedo

I love to see people helping so fast!!
kehstr is offline   Reply With Quote
Old 03-02-2016, 08:20 PM   #22
BustedTruck
Registered User
 
BustedTruck's Avatar
 
Join Date: Dec 2006
Location: Braselton, GA
Posts: 245
Re: 67-72 Electric speedo

Thanks for the replies. Ok so if I'm understanding this right, it's all about where the needle starts out?
BustedTruck is offline   Reply With Quote
Old 03-02-2016, 10:23 PM   #23
68c10airstream
Registered User
 
68c10airstream's Avatar
 
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
Re: 67-72 Electric speedo

That's correct. I just remembered the only problem i had when done was my needle stuck at 0 mph and wouldn't respond until i drove it and hit a few bumps and the dash warmed up then the needle moved. I pm'd ls1nova and once again he helped me and said i needed to remove the paint from the area where the needle hits the rest pin. I had painted the needles during the cluster job and the paint removal fixed it.

It does have to do with where the needle starts out at as going 60 mph and try to maintain that speed and remove the needle and then reinstall at the right moment and still drive safely is more than what i can do because i hate multitasking.

Just consider it's a trial and error process. I just left the clear lens off, made a tape reference mark for 60mph and drive and check recheck until correct. Just don't turn the ignition off at the drive motor for the needle has the tendency to move down counterclockwise, so leave the truck running and i suppose using gps and check your speed, pull over, take the needle off and reposition as needed.

Remember that these clusters are a little odd to look at around 10-30 mph because of the angle of your line of sight and referencing the needle to the mph scale but that's just the way they were. So to double check at 60mph is perfect because the line of sight at that point isn't a problem if that helps plus if it's accurate at 60 i don't care if it's off a hair at low speeds

Of all of the mods i've done to the truck the ls engine and the cluster mods are my favorites. The 8,000 rpm tach change is a must with the ls and the pcm will need to be scaled accordingly to read correctly. Terry at lone star dyno straightened this out for me. His avatar is "CRITTER"
68c10airstream is offline   Reply With Quote
Old 03-03-2016, 09:37 AM   #24
ls1nova71
Registered User
 
ls1nova71's Avatar
 
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Yep, that pretty much sums it up. Thanks for helping out, saved me a lot of typing!
Quote:
Originally Posted by 68c10airstream View Post
That's correct. I just remembered the only problem i had when done was my needle stuck at 0 mph and wouldn't respond until i drove it and hit a few bumps and the dash warmed up then the needle moved. I pm'd ls1nova and once again he helped me and said i needed to remove the paint from the area where the needle hits the rest pin. I had painted the needles during the cluster job and the paint removal fixed it.

It does have to do with where the needle starts out at as going 60 mph and try to maintain that speed and remove the needle and then reinstall at the right moment and still drive safely is more than what i can do because i hate multitasking.

Just consider it's a trial and error process. I just left the clear lens off, made a tape reference mark for 60mph and drive and check recheck until correct. Just don't turn the ignition off at the drive motor for the needle has the tendency to move down counterclockwise, so leave the truck running and i suppose using gps and check your speed, pull over, take the needle off and reposition as needed.

Remember that these clusters are a little odd to look at around 10-30 mph because of the angle of your line of sight and referencing the needle to the mph scale but that's just the way they were. So to double check at 60mph is perfect because the line of sight at that point isn't a problem if that helps plus if it's accurate at 60 i don't care if it's off a hair at low speeds

Of all of the mods i've done to the truck the ls engine and the cluster mods are my favorites. The 8,000 rpm tach change is a must with the ls and the pcm will need to be scaled accordingly to read correctly. Terry at lone star dyno straightened this out for me. His avatar is "CRITTER"
__________________
My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
ls1nova71 is offline   Reply With Quote
Old 03-03-2016, 07:11 PM   #25
BustedTruck
Registered User
 
BustedTruck's Avatar
 
Join Date: Dec 2006
Location: Braselton, GA
Posts: 245
Re: 67-72 Electric speedo

Thank you! I'm having trouble getting the decal straight. Any pointers? The LS is the best upgrade I've made by far. Where abouts can I get an 8k tach?

Last edited by BustedTruck; 03-03-2016 at 07:14 PM. Reason: Forgot information
BustedTruck is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:39 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com