LT1 question

[Dyno247365]

where are the spark plugs on an LT1? Are there any years that came with a coil pack (may be confused about this) ? How hard is it to change them on a fourth gen?

[88camaroproject]

umm in the side of the head maybe, lol

[stone_mound_camaro]

yes, i would agree. spark plugs are on the cylinder heads

[stepho]

they are pretty hard to change. They are under the exhaust manifold. The far back one on the passenger side is put near impossible. When I was taking my heads off, I had to take the exhaust manifold off before I could get that plug. It is possible to get it with them on though, I just didn't want to spend to much time trying to figure out how to take out an already bad spark plug.

They deffinately arn't easy to change.

[Dyno247365]

Originally Posted by stepho

they are pretty hard to change. They are under the exhaust manifold. The far back one on the passenger side is put near impossible. When I was taking my heads off, I had to take the exhaust manifold off before I could get that plug. It is possible to get it with them on though, I just didn't want to spend to much time trying to figure out how to take out an already bad spark plug.

They deffinately arn't easy to change.

Is the LT1 block the same design as my TPI?

[corning_d3]

I believe the LT1 is a different critter.

[Dyno247365]

Originally Posted by corning_d3

I believe the LT1 is a different critter.

I was just saying that because that's where the plugs are on a TPI.

side note, you've got a Monte Carlo with a Northstar???

[2.2 Straight six]

quicksilver, just buy a new car. seriously it would just save you money and an time...


j/k...

[corning_d3]

Originally Posted by Quicksilver_28

I was just saying that because that's where the plugs are on a TPI.

side note, you've got a Monte Carlo with a Northstar???

I'll soon have the engine sitting in the car, I've got two more engine swaps, and some other odd jobs before I can start work on it..

[Dyno247365]

Originally Posted by 2.2 Straight six

quicksilver, just buy a new car. seriously it would just save you money and an time...


j/k...

Huh? I am, I'm buying a car with an LT1 and 6 speed. I'm asking how hard it is to change plugs when I don't have..let's see forever because I need it for transportation.

[Dyno247365]

Originally Posted by corning_d3

I'll soon have the engine sitting in the car, I've got two more engine swaps, and some other odd jobs before I can start work on it..

That's dedicated!

[corning_d3]

Well, I have my own shop.. Gotta fund this project somehow!!

[Genopsyde]

i've seen the northstar swap done on a grand prix over on w-body.com

[FormulaLT1]

a LT1 is the same basic design as a traditional SBC. It shares alot of the same sensors as a TPI and yes the TPI and LT1 have the same spark plug lay out. The reason the LT1 is harder to change has nothing to do with the engine itself and more to do with the cramped engine bay.

Also, no coil pack was available stock but many people like Dave/drvngstorm have adapted a delteq system using the Northstars coil pack to the LT1.

[Dyno247365]

Tell me there's less plumbing to an LT1, I hate that on the TPI.