DarkFox118

iTrader: (7)

Hey Fellas, I've been searching for like 20 minutes now trying to find this, and I'm afraid there's so much info out there I'm getting my numbers mixed up.

I have truck coils with part number 12558693 and brackets, but the wire harnesses I have aren't up to par.

What's the part # for the harnesses to go with these coils?

Also, if a thread that shows all the different truck coils, brackets and partnumbers and what not.. that'd be awesome..

if not.. maybe we could make one? Could be useful.

These are for my 2000 z28, I have a skip under load, thinking it's a bad coil, figured I'd just put these on.

Paul Bell

iTrader: (9)

Is it the truck coils with the exposed heat sinks on them?

DarkFox118

iTrader: (7)

No, these do not have the heatsinks.

Paul Bell

iTrader: (9)

For the coil wiring harness, you'll need two 12601824.

As you've already determined, the coil plugs are different. There's LS1/6 style and LS2 style which fits everything else. The engine side of the harness matches.

The non-heat sink LS2 style truck coils are better than the original LS1/6 coils so there will be an improvement-although it'll be hard to gauge it. The big increase in coil power & output comes with the heat sinked truck version.

KRAZY K 2000 TA

iTrader: (5)

paul is correct the heat sink style is supposedly the best i got mine from the junk yark for 50 bucks of a 2002 silverado look like brand new

DarkFox118

iTrader: (7)

Thanks guys. I'm going to sit on this for now. I'll keep the part number in mind. My valves are making some horrible noise last few days (it's a bit cooler than it was and they get noisy when it gets cooler) so.. I might wait on swapping out coils until I'm in a position to get new heads too and just do them both at once.