trey0153

iTrader: (3)

are the coils off a 07 avalanche compatable and upgrade from stock ls1 coils,plug and play or mods needed? guy has coils,harness and brackets.

LS1-450

iTrader: (33)

Nope.

Paul Bell

iTrader: (9)

If you get the coils with the brackets AND harnesses, yes, it will work.

What vehicle & year is the LS1 you're installing this on?

trey0153

iTrader: (3)

2000 z/28

Paul Bell

iTrader: (9)

Great. The brackets will bolt to the valve covers just like the originals did.

You'll need to snip a weld on the fuel rail bracket and move the evap solenoid.

Everything you need to know in post #1: https://ls1tech.com/forums/generatio...l-upgrade.html

JRENIGAR

iTrader: (37)

I just read the post you outlined and if I understand it correctly, I thought it said that some kind of diff between ls1 and ls2 harness requires something to be changed or re pinned? I have a set of the 585 heat sink coils with brackets and harness that are going on a 2000 T/A with a procharged LQ4/4l80 combo. Other than the fuel rail snip and evap solenoid is there anything else that has to be changed? Sorry for asking what was probably already gone over but I didnt want to miss read it and make more out of less so to speak. Thanks.

Paul Bell

iTrader: (9)

The different harness is the one that's on the coil bracket and connects to the coils. The large central plug goes to the engine harness.