OR HEI Wanted - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Already Gone** · 01-06-2015, 03:50 PM

Quote:

Originally Posted by 70STOVEBOLT

The ends are different at the distributor cap end and you want at least 8mm wires. Standard points-type use 7mm wires.

Thanks for the info. It'll be good to know when I change my original points distributor to an HEI. Do you have to change the wires if you install a Pertronix conversion?

tll74 · 01-06-2015, 05:21 PM

A side from MSD and other name brand units, the original GM 85-86 cores are best ones to start with. Buy the Petronix kit with the coil and a adjustable vac advance. I run two of these in my circle track cars and spin them 7000ish rpm with no problems. Stay away from the 49.95 new ones as they have problems.

54blackhornet · 01-06-2015, 05:31 PM

Tom, do you have a GM Hei ?

**70STOVEBOLT** · 01-06-2015, 05:34 PM

Quote:

Originally Posted by Already Gone

Thanks for the info. It'll be good to know when I change my original points distributor to an HEI. Do you have to change the wires if you install a Pertronix conversion?

No you can run 7mm stock wires with the Pertronix.

01-06-2015, 05:21 PM	#2
tll74 "Junkyard Dog" Join Date: Jan 2008 Location: Springfield Oregon Posts: 2,529	Re: HEI Wanted A side from MSD and other name brand units, the original GM 85-86 cores are best ones to start with. Buy the Petronix kit with the coil and a adjustable vac advance. I run two of these in my circle track cars and spin them 7000ish rpm with no problems. Stay away from the 49.95 new ones as they have problems. __________________ 72 C-10 Cheyenne Super LWB, Vortec 427,TH700, 3.73 posi, tach, tilt, AM-FM,Frame off in process. http://s289.photobucket.com/albums/l...t=7eae161e.pbw 88 Monte Carlo SS bought new only 10k miles. 73 Chevelle SS 454 had since high school. 74 Camaro Z28 350 AT numbers matching, Black on Black. 73 El Camino SS 350 4sp. 70 Chevelle SS 396 4sp, number matching with LS6 454 69 Chevy C30 Car Hauler 86 K20 383 4sp 4" lift frame off restoration. http://s289.photobucket.com/albums/l...t=1b1082d3.pbw

01-06-2015, 05:31 PM	#3
54blackhornet Registered User Join Date: Jul 2008 Location: Eastern Oregon Posts: 2,426	Re: HEI Wanted Tom, do you have a GM Hei ? __________________ 71 C-20 07 Magnum RT AWD



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