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12-03-2010, 06:40 PM
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#1 |
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Registered User
 Join Date: Oct 2009
Location: Burbank,California
Posts: 285
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tach guage
So i can't use a factory tach guage with HEI, right? Is there a aftermarket guage that fits the cluster that could be used? Or is it out of the question?
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12-03-2010, 06:58 PM
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#2 |
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Registered User
Join Date: Dec 2008
Location: Pleak, Texas
Posts: 420
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Re: tach guage
I'm pretty sure that you can use the stock tach on an HEI distributor. Just hook it up to the tach plug-in. There's a thread on here somewhere about it.
__________________
-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS  -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too)  You've gotta be able to stop and steer before you can go fast! |
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12-03-2010, 07:20 PM
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#3 |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: tach guage
I have used them with HEI. No changes at all, just plugged it in.
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Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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12-03-2010, 07:48 PM
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#4 | |
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Registered User
Join Date: Apr 2009
Location: dunlow wv
Posts: 435
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Re: tach guage
Quote:
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72,2wd short bed cheyenne,350,350trans,air,tilt,tach,posi 373 gears 70 nova 5.3,350 trans 80 z28 350,350,trans,bought new 03 cat. 06 gmc swb ext cab |
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12-04-2010, 03:04 PM
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#5 |
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Registered User
Join Date: Mar 2003
Location: San Francisco, CA USA
Posts: 2,454
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Re: tach guage
This appears to be a sometimes issue, and may depend on the type of HEI. However, the tachs that don't work properly can be modified, so you don't need to throw away an otherwise good tach.
Ray
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Live more responsibly. Eat lower on the food chain. Eat vegetarians. |
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04-21-2011, 05:00 PM
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#6 |
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Registered User
Join Date: Oct 2009
Location: Burbank,California
Posts: 285
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Re: tach guage
Any other opinions? I wanna buy a new cluster with tach but am afraid I might damage it with hei
Posted via Mobile Device |
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04-21-2011, 05:57 PM
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#7 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,031
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Re: tach guage
you will not damage it with hei. i have run two trucks with factory tachs and hei. no problems.
Posted via Mobile Device
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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04-21-2011, 07:34 PM
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#8 |
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the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: tach guage
hei/tach no prob here either. Now I'm running factor tach w a ls computer
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04-21-2011, 08:30 PM
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#9 |
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Registered User
Join Date: Feb 2010
Location: salem oregon
Posts: 225
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Re: tach guage
same here, transplated 1975 454 with HEI in my GMC 3500 (longhorn), factory tach, no problems.
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In the words of my favorite poet, singer/songwriter (Paul Thorn)  :"What ever you believe, you might be wrong"
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04-21-2011, 08:34 PM
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#10 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: tach guage
every once in a while someone hooks up a 40 year old tach to HEI and it doesn't work. However, by design, it'll work.
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03-28-2012, 10:11 AM
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#11 |
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Registered User
Join Date: Oct 2009
Location: Burbank,California
Posts: 285
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Re: tach guage
Ok guys its been almost a year since we touched on this subject here last. I installed a factory tach last summer. Only driven 300 miles. Tach worked great. Took cluster out to change temp guage and when I was done the tach didn't work. Was stuck at 2000 rpm. So I bought a new one from classic industries and replaced it. Realizing when I had replaced the temp guage I had bent the backing just a touch on the tqach and that was the problem! I installed the new tach anyways. Took the truck yesterday to a guy who tuned the truck real nice. Took my streetfire msd distributor and put it on a machine to set the advance and just really tuned it nice. Drove it 4 miles from his place with the tach working ok, and suddenly I smelled burning and here comes smoke from the cluster. Tach goes dead (along with my heart). Than a few min later it started working again. When at idle the needle jumps. So im sure something in the tach smoked. Could this guy have hooked his light wrong to the truck and smoked it for me? Other ideas?
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03-28-2012, 03:52 PM
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#12 |
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Registered User
Join Date: Jul 2000
Location: Victoria,BC, Canada
Posts: 1,300
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Re: tach guage
Reproduction gauges with tach, plugged into ramjet HEI has not worked.
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71 GMC 1500 LWB |
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03-28-2012, 04:43 PM
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#13 |
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Registered User
Join Date: Aug 2011
Location: Atlanta, GA
Posts: 1,523
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Re: tach guage
I'm using AutoMeter SportComp tach with HEI, no problems
Posted via Mobile Device
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Best Regards, Leon M. Instagram: @TheDirtyDianah
Bagged | 6.0L LS | T-56 (6-Speed Manual) | Turbo Burnout/Rolling Video: Chevy C10 Stepside 6.0L LSx & 6-Speed Manual |
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04-17-2012, 12:06 PM
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#14 | |
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Registered User
Join Date: Oct 2009
Location: Burbank,California
Posts: 285
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Re: tach guage
Quote:
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