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Old 01-26-2023, 12:21 AM   #1
RichardJ
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Re: Need a quality US Made HEI recommendation for my 250 I6

>>The problem with your HEI may be in the wiring that powers it.<<

I agree, but it could be the pickup coil wires in the HEI that are constantly flexing with the vacuum advance. It doesn't sound like a module problem.
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Old 01-26-2023, 11:16 PM   #2
Yamariv
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Re: Need a quality US Made HEI recommendation for my 250 I6

Quote:
Originally Posted by RichardJ View Post
>>The problem with your HEI may be in the wiring that powers it.<<

I agree, but it could be the pickup coil wires in the HEI that are constantly flexing with the vacuum advance. It doesn't sound like a module problem.
Do you know where I could get a quality pickup coil like that? Is that more of a specialty part or would most parts stores have that?
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Old 01-31-2023, 11:02 AM   #3
Yamariv
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Re: Need a quality US Made HEI recommendation for my 250 I6

Quote:
Originally Posted by RichardJ View Post
>>The problem with your HEI may be in the wiring that powers it.<<

I agree, but it could be the pickup coil wires in the HEI that are constantly flexing with the vacuum advance. It doesn't sound like a module problem.
Can someone please clarify, this may be a dumb question but is this pickup coil doing the same job as the coil that is in the HEI distributor cap? Is this coil different?
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1971 Chev C10 - 250ci L6 w/3 speed on the floor

Upgrades: Power Steering
3 Core Radiator
7 Hole Gauge Cluster
Power Brakes (Incoming!!..)
1971 350 (Incoming!!..)
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Old 01-31-2023, 05:18 PM   #4
MikeB
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Re: Need a quality US Made HEI recommendation for my 250 I6

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Originally Posted by Yamariv View Post
Can someone please clarify, this may be a dumb question but is this pickup coil doing the same job as the coil that is in the HEI distributor cap? Is this coil different?
The pickup coil and spinning reluctor generate a pulse six times per distributor revolution, and then that pulse is shaped and amplified by the module.

The module sends its pulses to the high tension coil in the cap, which sends high voltage pulses to the spark plugs.
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1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
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Old 01-31-2023, 08:19 PM   #5
Yamariv
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Re: Need a quality US Made HEI recommendation for my 250 I6

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Originally Posted by MikeB View Post
The pickup coil and spinning reluctor generate a pulse six times per distributor revolution, and then that pulse is shaped and amplified by the module.

The module sends its pulses to the high tension coil in the cap, which sends high voltage pulses to the spark plugs.
Ahh, that makes sense!! Thank you Sir
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1971 Chev C10 - 250ci L6 w/3 speed on the floor

Upgrades: Power Steering
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7 Hole Gauge Cluster
Power Brakes (Incoming!!..)
1971 350 (Incoming!!..)
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