Hei c - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sicboy · 11-02-2009, 11:46 AM

For my 66's 327, should the HEI lead to the fuse box be unfused or should I use an inline fuse? There are two spades on my fuse box that are labled ''ign-unfused''.

*LILRED66* · 11-02-2009, 12:33 PM

Ign-unfused means it is hot when the ignition is on and there is not fuse protection, so this has nothing to do with the actual ignition/hei. There are two leads/connectors on an HEI, one for the hot lead and one for the tach. The hot lead should attach to a fused connector on the fuse block. I can't remember where I connected mine, but I will check and you will definitely get some input from fellow members. You may also post this in the electrical forum, for many replies. Good luck.

**Captainfab** · 11-03-2009, 01:04 AM

What I've done is trace the original ignition wire (the one that went to the coil) all the way back to the ignition switch. I then replaced that with a 12ga wire all the way to the distributor. The factory typically used a pink colored wire for this. You need to be sure that you have a full 12 volts to the HEI.

11-02-2009, 11:46 AM	#1
Sicboy Registered User Join Date: Jun 2009 Location: Eugene, OR Posts: 200	Hei c For my 66's 327, should the HEI lead to the fuse box be unfused or should I use an inline fuse? There are two spades on my fuse box that are labled ''ign-unfused''. __________________ Project Build (1): http://67-72chevytrucks.com/vboard/s...d.php?t=362482 Project build (2): http://67-72chevytrucks.com/vboard/s...d.php?t=370985 “Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming...Wow, What a Ride!” - Hunter S. Thompson

11-02-2009, 12:33 PM	#2
LILRED66 Account Suspended Join Date: May 2005 Location: Kansas City, KS Posts: 3,906	Re: Hei c Ign-unfused means it is hot when the ignition is on and there is not fuse protection, so this has nothing to do with the actual ignition/hei. There are two leads/connectors on an HEI, one for the hot lead and one for the tach. The hot lead should attach to a fused connector on the fuse block. I can't remember where I connected mine, but I will check and you will definitely get some input from fellow members. You may also post this in the electrical forum, for many replies. Good luck.

11-03-2009, 01:04 AM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Hei c What I've done is trace the original ignition wire (the one that went to the coil) all the way back to the ignition switch. I then replaced that with a 12ga wire all the way to the distributor. The factory typically used a pink colored wire for this. You need to be sure that you have a full 12 volts to the HEI. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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