GM 7-Pin HEI retrofit - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rakort · 06-02-2005, 10:59 PM

Anyone know how to make a later model 7-pin HEI dist work in an older vehicle? I understand that the 7-pin setup has electronic timing control (ESC?) which seems kind of attractive to me. I'm wondering if there is a control module (aftermarket even) you can hook up to the dist and program advance curves and so forth?

How about some good sites to read about this?

Thanks

**kwmech** · 06-02-2005, 11:05 PM

Sounds like you're gonna need a computor. 4 pin hei would be easier

Rakort · 06-02-2005, 11:07 PM

Ya, 4 pin is no problem....one wire, but where is the challenge..

**kwmech** · 06-02-2005, 11:46 PM

Quote:

Originally Posted by Rakort

Ya, 4 pin is no problem....one wire, but where is the challenge..

djracer · 06-02-2005, 11:44 PM

you can take the module out of that dist. and trigger a msd box with the magnetic pickup.

06-02-2005, 10:59 PM	#1
Rakort Registered User Join Date: Jul 2001 Location: Neenah, WI Posts: 327	GM 7-Pin HEI retrofit Anyone know how to make a later model 7-pin HEI dist work in an older vehicle? I understand that the 7-pin setup has electronic timing control (ESC?) which seems kind of attractive to me. I'm wondering if there is a control module (aftermarket even) you can hook up to the dist and program advance curves and so forth? How about some good sites to read about this? Thanks __________________ Rakort Parts for Sale: Pictures Awesome Elec. Schematic Available: Picture Awesome Elec. Schematic Available: Picture

06-02-2005, 11:07 PM	#3
Rakort Registered User Join Date: Jul 2001 Location: Neenah, WI Posts: 327	Ya, 4 pin is no problem....one wire, but where is the challenge.. __________________ Rakort Parts for Sale: Pictures Awesome Elec. Schematic Available: Picture Awesome Elec. Schematic Available: Picture

06-02-2005, 11:44 PM	#5
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	you can take the module out of that dist. and trigger a msd box with the magnetic pickup. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

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06-02-2005, 11:05 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,599	Sounds like you're gonna need a computor. 4 pin hei would be easier



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