|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
 |
|
|
Thread Tools | Display Modes |
05-19-2008, 04:18 PM
|
#1 |
|
sharp as a marble
 Join Date: Jan 2007
Location: atlantic beach,florida
Posts: 1,082
|
tachometer to hei conversion
Greetings!
I am looking for someone to convert the tach in my truck to hei. I installed the gauge cluster, and want to go to Gm's big cap hei ignition. My reading says that the tachs will not read correctly. Thanks in advance |
|
|
|
05-19-2008, 04:26 PM
|
#2 | |||
|
Union Electrician
Join Date: Feb 2005
Location: Louisville, Ky.
Posts: 3,356
|
Re: tachometer to hei conversion
That is a farse as far as I can tell. I have personally tested 500-600 of these truck dashes and have found that most if not all factory or repop tachs will work with HEI. Accuracy on the other hand may be sacraficed some, after all it is 40 year old technology.
__________________
 69 Custom-10 SWB FLEETSIDE  350/350 TH Dropped 3.5/5.5"Help support the board->HERE Board vendors -> Vendors list Zip:40272 Big Sandy Survivor... Quote:
Quote:
Quote:
|
|||
|
|
|
|
05-19-2008, 04:36 PM
|
#3 |
|
Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
|
Re: tachometer to hei conversion
Mine works just fine but it is off about 100 RPM at idle
__________________
69 Chevy 4x4 383 Power 
|
|
|
|
|
05-19-2008, 05:13 PM
|
#4 |
|
Roadtrip!
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,768
|
Re: tachometer to hei conversion
I agree 100% with byrd.
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
|
|
|
|
05-19-2008, 06:04 PM
|
#5 |
|
Senior Member
Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,883
|
Re: tachometer to hei conversion
I have factory tach and just switched to HEI and it is just as inaccurate as it was before.
__________________
'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
|
|
|
|
05-19-2008, 08:53 PM
|
#6 |
|
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: tachometer to hei conversion
crimping a connection is all that is needed to convert... pretty much plug and play
|
|
|
|
|
| Bookmarks |
|
|
Linear Mode
