Don't mean to ruffle feathers here but I want to have a bit of fun and provide a counter point of view.
The high energy part, of a High Energy Ignition, is an overkill. The stock coil produces all you need plus more for our I6 engines.
A typical HEI (GM made 250 I6 for example), that is GM tested and works well, is made for a 12 volt system so the HEI conversion now requires a truck 6 to 12 volt conversion (or HEI 12 to 6 volt adaption).
Well that's an unfortunate cost increase.
Shouldn't the focus be on the part that wears and has to be replaced periodically?
So, a replacement for mechanical ignition contacts that:
Works well on 6 volts.
Is self contained (doesn't need an ugly firewall mounted module and extra wiring).
Is easy to install.
Has a reasonable cost.
Doesn't fail if ignition keyswitch is accidentally left on.
Is absolutely known reliable.
The competing factor or logic for the focus above:
A truck that is frequently used may see 15,000 miles before the contacts need replacement. Lets say 10,000 miles so we have extra protection.
Lets buy 5 sets of contacts today at $20 each. Skip that, add inflation, 5 sets at $30 each for $150 total.
I religiously change the contacts out every 10,000 miles (even though it's a hassle why my big belly).
That's 50,000 miles for $150 (hmmm, my truck may outlive me before it sees that many miles).
Well I'm senior, can someone please explain it to me again why my old truck needs HEI?
Last edited by buoymaker; Wed Jun 01 2022 12:25 AM.