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10-26-2017, 02:15 PM
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#1 |
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Registered User
Join Date: Jul 2011
Location: Calgary, Alberta
Posts: 153
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Factory Tach with HEI
Continuing the theme of HEI conversion from points.... I have a factory tach that works very well. I know how to wire to HEI dist (very simple) I am wondering if the tach will still read properly once I am converted or if I need some sort of inline filter that some of the manufacturers talk about?
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10-26-2017, 04:12 PM
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#2 |
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Registered User
Join Date: Sep 2015
Location: portland, OR
Posts: 48
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Re: Factory Tach with HEI
Mine worked fine directly connected.
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10-26-2017, 04:17 PM
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#3 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Factory Tach with HEI
Mine works fine with an MSD billet distributor.
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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10-26-2017, 04:20 PM
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#4 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Factory Tach with HEI
Mine did to. No problems at all.
Make sure you cut the resister wire out of the coil wire also. 
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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10-26-2017, 09:18 PM
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#5 |
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Senior Member
 
Join Date: Nov 2012
Location: BY THE CAROLINA SEA
Posts: 922
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Re: Factory Tach with HEI
Mine works great.
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FRANKENTRUCK 1981 Chevrolet C10 Shortbed Stepside GRANDTRUCK 1968 Chevrolet C10 Stepside Longbed http://67-72chevytrucks.com/vboard/s...d.php?t=584617 PROJECT JIGSAW 1967 GMC C3500 GREAT WHITE 1986 Blazer M1009 454 engine w/700R4 transmission gas conversion |
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10-26-2017, 09:32 PM
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#6 |
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Registered User
Join Date: Jul 2011
Location: Calgary, Alberta
Posts: 153
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Re: Factory Tach with HEI
Ok perfect!! Thanks Gentlemen.
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10-27-2017, 12:26 AM
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#7 |
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Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,350
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Re: Factory Tach with HEI
Mine reads high. On the dwell meter ( It has a tach) I get 800 at idle but the tach says 1200. At 2500 on the dwell meter tach reads 3800. Not sure if it is the HEI or the 50 year old tach. But that little 305 sure revs to 5 grand quick.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.  RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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12-03-2017, 05:39 PM
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#8 |
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Senior Member
Join Date: Apr 2013
Location: Pottsgrove PA
Posts: 560
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Re: Factory Tach with HEI
I'm looking to install new gauge cluster in my 72. Most of the manufacturers state that they will not work with HEI distributors. I thought it was just a wire from the dist to the tach?
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72 Cheyenne Super C10 SWB 2001 Silverado 1500HD Crew 2011 Silverado 2500HD Crew Duramax (Hers) |
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