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#1 |
Registered User
Join Date: Sep 2015
Location: Twin Lakes, Idaho
Posts: 74
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HEI tach vs Non HEI tach
Ok I see repro tachometers for sale. What is the difference between the HEI versus non HEI tachometer.
Thanks
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KippnIdaho Twin Lakes, Idaho 1966 K10 SWB Stepside 2003 Jeep Rubicon 2011 Camaro SS Rag Top |
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#2 |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: HEI tach vs Non HEI tach
I am no expert but I would say it has to do with whether you have a regular distributor or a HEI distributor.
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#3 |
Registered User
![]() Join Date: Feb 2016
Location: Anza, CA
Posts: 160
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Re: HEI tach vs Non HEI tach
The signal from a standard points type distributor is different than the signal from an HEI distributor. This link explains it. http://www.americanautowire.com/view...c-distributor/
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#4 | |
Registered User
Join Date: Feb 2009
Location: southeasternfoothillsofusa
Posts: 1,557
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HTH, Sam |
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#5 |
Registered User
Join Date: Sep 2015
Location: Twin Lakes, Idaho
Posts: 74
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Re: HEI tach vs Non HEI tach
Thanks for the replies. I do know the differences between standard and HEI distributors. My question is what if any difference is there on the repro tachometers some are listed as for use with HEI and some do not. I called supplier and they said they did not know if the repro tach would work with HEI. I have both types of distributors so I guess I was just wondering if there is a difference on the wiring to the tach between the two.
Thanks
__________________
KippnIdaho Twin Lakes, Idaho 1966 K10 SWB Stepside 2003 Jeep Rubicon 2011 Camaro SS Rag Top |
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#6 | |
Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,610
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Re: HEI tach vs Non HEI tach
Sorry it is hard to gauge the level of knowledge sometimes. I know vary little so I wrongly assume that the same is true of others.
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#7 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,865
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Re: HEI tach vs Non HEI tach
I'll be honest, I did not know there was a difference in a tach between HEI and non-HEI All the tachs I have or seen in use worked with either distributor.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 06-03-2016 at 01:33 PM. |
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#8 |
Registered User
Join Date: Aug 2015
Location: Kelowna, B.C, Canada
Posts: 1,747
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Re: HEI tach vs Non HEI tach
Yeah neither did I. I have a new sun pro super tach 2 and it says it's universal on the packaging, it works fine with my 261 with points.
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Nik...................____ 62 lwb c10 step-side 261 5 spd .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ my build thread. Sending unit solution |
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#9 |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: HEI tach vs Non HEI tach
Yeah, most of the aftermarket tachs have the built in circuits to deal with points or HEI. It's the factory style dash tachs that have issues.
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. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#10 |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: HEI tach vs Non HEI tach
Don't quote me but I think it has to do with filters built into the tach to prevent damage to the gauge or due to voltage issues. I know a buddy was looking at repo tachs and there was non HEI only available and he is running an HEI so he went a different route as he did not want to chance any damage.
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. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#11 |
Moderator
![]() ![]() Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: HEI tach vs Non HEI tach
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Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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