WI WTB Good HEI core - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**DeadheadNM** · 02-06-2024, 02:27 PM

Looking for a solid HEI core to rebuild and use. Doesn't have to have a cap, rotor, or module. Will buy and/or swap for other parts. Thanks.

**jimmy70** · 02-06-2024, 06:31 PM

I've good a few Mallory HEI distributors / 1 complete / 1 core if interested.

PM a contact # and I'll shoot u a few pix. marko

**DeadheadNM** · 02-06-2024, 09:05 PM

Marko thanks. I’m aiming for a GM Delco example but I appreciate the offer.

**Burnsy01** · 02-07-2024, 12:32 AM

Quote:

Originally Posted by DeadheadNM

Marko thanks. I’m aiming for a GM Delco example but I appreciate the offer.

I have Atleast one- I can grab you some pictures tomorrow .

Thank you

Nick

**Burnsy01** · 02-07-2024, 08:34 AM

Quote:

Originally Posted by DeadheadNM

Marko thanks. I’m aiming for a GM Delco example but I appreciate the offer.

Let me know if this would work for you.

Thanks
Nick

**DeadheadNM** · 02-07-2024, 12:53 PM

Thanks Nick that looks promising. Are you able to read the part number and date code on the body for me? Something like this pick but from a points distributor:

**Burnsy01** · 02-07-2024, 12:54 PM

Quote:

Originally Posted by DeadheadNM

Thanks Nick that looks promising. Are you able to read the part number and date code on the body for me? Something like this pick but from a points distributor:

Sure I can take a look

**Burnsy01** · 02-07-2024, 04:40 PM

Quote:

Originally Posted by DeadheadNM

Thanks Nick that looks promising. Are you able to read the part number and date code on the body for me? Something like this pick but from a points distributor:

Can you tell me where the part number is? I can’t find one. It’s definitely a factory gm hei I just don’t see a part number

**DeadheadNM** · 02-07-2024, 05:13 PM

Quote:

Originally Posted by Burnsy01

Can you tell me where the part number is? I can’t find one. It’s definitely a factory gm hei I just don’t see a part number

Sorry for the hassle. It should be stamped on the side of the aluminum housing at or near the level of the module and hidden by the cap. If you pop the cap off and look along the side it should be visible. Similar location to that for the points distributor. Thanks for the help.

EDIT - added HEI example

**1970cstblazer** · 02-07-2024, 08:20 PM

If you are disassembling any old HEI, a new old stock Delco pickup coil, or pole piece as GM calls them is necessary. Those small wires work harden and break internally due to the back and forth motion caused by the vacuum advance, causing intermittent performance issues or outright failure. Also use a NOS Delco module and use the special heat dissipating grease on the bottom of the module. 1975 Chevy 350 pole piece is 1875981 D1907. The module is 1875990.

**Burnsy01** · 02-07-2024, 08:30 PM

Quote:

Originally Posted by DeadheadNM

Sorry for the hassle. It should be stamped on the side of the aluminum housing at or near the level of the module and hidden by the cap. If you pop the cap off and look along the side it should be visible. Similar location to that for the points distributor. Thanks for the help.

EDIT - added HEI example

Okay 2 different codes-

1112977

5g24

**DeadheadNM** · 02-07-2024, 09:26 PM

Quote:

Originally Posted by Burnsy01

Okay 2 different codes-

1112977

5g24

That works. Lmk what you need to get for it and thanks again.

**DeadheadNM** · 02-07-2024, 09:29 PM

Quote:

Originally Posted by 1970cstblazer

If you are disassembling any old HEI, a new old stock Delco pickup coil, or pole piece as GM calls them is necessary. Those small wires work harden and break internally due to the back and forth motion caused by the vacuum advance, causing intermittent performance issues or outright failure. Also use a NOS Delco module and use the special heat dissipating grease on the bottom of the module. 1975 Chevy 350 pole piece is 1875981 D1907. The module is 1875990.

Thanks for good info. I did source a NORS Standard pickup coil and have a store of USA made Echlin modules. I could use that module and will scrounge for one. The new HEI in the Blazer has been chronically problematic with warm starting. If I replace it with another HEI I want that to be solid since is just such a pita to get way back in there.

**Burnsy01** · 02-07-2024, 10:27 PM

Quote:

Originally Posted by DeadheadNM

That works. Lmk what you need to get for it and thanks again.

No problem- $40 shipped?

**DeadheadNM** · 02-07-2024, 10:32 PM

Quote:

Originally Posted by Burnsy01

No problem- $40 shipped?

Sure. Lmk how to square up. I’ll send a PM. Thanks again.

02-06-2024, 02:27 PM	#1
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,299	WTB Good HEI core Looking for a solid HEI core to rebuild and use. Doesn't have to have a cap, rotor, or module. Will buy and/or swap for other parts. Thanks. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

02-06-2024, 06:31 PM	#2
jimmy70 Senior Member Join Date: Aug 2007 Location: Warren,Michigan Posts: 995	Re: WTB Good HEI core I've good a few Mallory HEI distributors / 1 complete / 1 core if interested. PM a contact # and I'll shoot u a few pix. marko

02-06-2024, 09:05 PM	#3
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,299	Re: WTB Good HEI core Marko thanks. I’m aiming for a GM Delco example but I appreciate the offer. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

02-07-2024, 12:53 PM	#6
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,299	Re: WTB Good HEI core Thanks Nick that looks promising. Are you able to read the part number and date code on the body for me? Something like this pick but from a points distributor: Attached Images __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

02-07-2024, 08:20 PM	#10
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,314	Re: WTB Good HEI core If you are disassembling any old HEI, a new old stock Delco pickup coil, or pole piece as GM calls them is necessary. Those small wires work harden and break internally due to the back and forth motion caused by the vacuum advance, causing intermittent performance issues or outright failure. Also use a NOS Delco module and use the special heat dissipating grease on the bottom of the module. 1975 Chevy 350 pole piece is 1875981 D1907. The module is 1875990. __________________ 1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels



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