Factory Tach Wire Length - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72BlckButy · 02-05-2011, 09:50 PM

I wanted to see if anyone had a factory tach wiring harness out of a truck, that they could measure the overall length of the harness. I'm looking for the length from the tach mount to the coil plug.

Thanks in advance!
Nate

into69z · 02-06-2011, 12:18 AM

Nate-I just received a tach harness from M&H wiring yesterday and man it's nice. I am glad I spent the $23. not only does it have the correct color, but it has the firewall groumet and correct connections for HEI.(no, I don't work for them!)
Anyways, I measured the brown tach lead from the back of the tach to the distributer and it measured 108".

Now does anyone have a picture of where the tach wire goes thru the firewall so I can drill in the correct place?.Thanks Steve

72BlckButy · 02-06-2011, 09:05 PM

Thanks a ton Steve!

I have a pic someplace of the proper hole... I'll see if I can find it and post it up asap.

02-05-2011, 09:50 PM	#1
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Factory Tach Wire Length I wanted to see if anyone had a factory tach wiring harness out of a truck, that they could measure the overall length of the harness. I'm looking for the length from the tach mount to the coil plug. Thanks in advance! Nate __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

02-06-2011, 12:18 AM	#2
into69z "brand new second-hand" Join Date: Feb 2007 Location: White House, Tennessee Posts: 526	Re: Factory Tach Wire Length Nate-I just received a tach harness from M&H wiring yesterday and man it's nice. I am glad I spent the $23. not only does it have the correct color, but it has the firewall groumet and correct connections for HEI.(no, I don't work for them!) Anyways, I measured the brown tach lead from the back of the tach to the distributer and it measured 108". Now does anyone have a picture of where the tach wire goes thru the firewall so I can drill in the correct place?.Thanks Steve __________________ Steve 69 3/4t custom camper tilt,am/fm,speed warning,air gauge,buddy buckets,aux battery, big block,p/s,p/b,a/c 67 Camaro 96 Impala ss-sold 04 hybrid Honda-saving gas for the blue truck!:b69:

02-06-2011, 09:05 PM	#3
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Factory Tach Wire Length Thanks a ton Steve! I have a pic someplace of the proper hole... I'll see if I can find it and post it up asap. __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

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