lethal bird

iTrader: (12)

Ok i'm going to be wrapping up my 24x conversion here very soon and i need some coils. Will any set of coils work or just the ls2 because i can get some truck coils VERY cheap and would like to know if they would work?

the_merv

iTrader: (88)

Any coil will work..the circle ones with the Heat Sinks on them are the ones most people go for..they have been proven to make more power.

henry172

iTrader: (2)

^Those are the truck coils I believe. I have ls2 coils with no heat sinks; they seem to work fine.

the_merv

iTrader: (88)

Yup..I pulled my set off of a 5.3 at the Junkyard..paid $100 for them.

They arent on all trucks tho..my old 1999 Sierra 1500 and my current 2001 2500HD do not have these coils.

lethal bird

iTrader: (12)

Good cause i can get my pcm, coils, front cover, and hub for 140.

95mysticta

iTrader: (4)

Im still kind of new to the LS stuff but my used kit i just bought came with truck coils. Ill see how they work and if i have issues i might convert to the smaller LS1 LS2 coils. Guess i have to start reading up on the LS stuff so i dont sound like a complete noob

lethal bird

iTrader: (12)

Well i can source the truck coils really cheap so i lucked out in that department.

gregrob

iTrader: (8)

Truck coils are much easier to mount than stock style LS1 coils.

BOLO

iTrader: (40)

The coils that I purchased with the kit from EFI Connection has the GM part#12573190. I believe they are LS7 coils.

henry172

iTrader: (2)

Here are the three types of ls coils out there. ls1, ls2 and truck coils



Personally I like the ls2 coils best; because they are the most compact. I don't think the truck coils will make much more power than the ls2 coils; unless you have a bad ls2 coil.

lethal bird

iTrader: (12)

Just scored me some truck coils for $40! Now how can i mount them and they not look like do-do. And if anyone can let me know if im forgetting something for my 24x conversion please chime in. I have a 96-97 hub and timing cover coming, truck coils, im ordering the 24x kit, pcm, diy harness kit, and crank key at the end of the month. And i need to source a 96-97 knock sensor.

camar0corey

iTrader: (22)

That was my broke college student way of mounting the coils. I don't open the hood for anyone so I couldn't care less how it looks, its functional.

lethal bird

iTrader: (12)

Got any more pics and how you mounted them?

qc97z

iTrader: (9)

There's a ton of different ways to mount them, and it's up to you wherever you'd like them to be. Casper's can make extensions for you for the main coil harnesses (one on each side) so you can locate them anywhere. I assume you're also going to go with the MSD DIY wire kit with LS1 ends, or some other sort of custom length wire.
It seems like the only decent spots to locate the coils is on the valve covers (which can work very nicely , whether you have center bolts or not), and the back of the intake manifold. If you're handy with sheet metal fabrication, you can do anything.

lethal bird

iTrader: (12)

Yea ill be using the msd diy ls1 plug wire kit. I plan on mounting the on the valve covers but i wanted to see some mounted that clear oil neck and pvc tube.

qc97z

iTrader: (9)

Are you using centerbolt covers or perimeter bolt?

lethal bird

iTrader: (12)

Centerbolt.

97Z28SS

iTrader: (5)

I have a new set of Thunder Racing LSx coil relocation brackets I never used for $75 + shipping lmk if you're interested. Either pm me or email me at z24.turbo@gmail.com

camar0corey

iTrader: (22)

I can maybe snap some more pictures tomorrow, but I just used stainless rod stock and stainless washers/nuts. Then I just used a spacer to keep it up off the valve cover and more spacers where needed to clear the oil fill and pcv stuff. I painted the spacers this last time I had the motor out. What I used for spacers was actually those that were on the stock exhaust manifold bolts.

qc97z

iTrader: (9)

^ Nice! Way to be resourceful.

Lethal, I may be able to help you with this. If I had some dimensional numbers (hole spacing and coil mounting hole spacing) I could draw something up for you.
I have access to AutoCAD, and you could take it to a local shop and have it laser cut for you. Then you'd just use some internally threaded spacers to mount the coils on. Or, you could always purchase the coil brackets from EFI Connection. They're made from high quality materials and are a great fit (I use them).
If you wanted to get some cut at a shop, they'd probably charge you about $100 or so to do it. Then you'd have to get hardware, spacers, and make some countersinks/counterbores to flush up hardware.