I'm looking on Ebay for some coils for my 3.1 Euro Lumina. I had a bid on one but some arsehole used a sniper and out bidded me with 4 seconds left in the auction (I'm not evey going to get into that)!!
Anyway, I see there are some coils for a 3.4 Z34 Lumina on Ebay now. The firing orders are the same. Are there any differences between a 3.1 coils and a 3.4 coil? I don't see anything listed different in the Haynes Book that I have.

I guess nobody knows. I've looked in the Haynes book and I assume that it will work since the firing orders are the same and they are both 6-cylinder engines.

most all gm coils will interchange as long as their same type the coils u r refering r same as 4cyl to 8cyl some have # marked on them but will still work go to local salvage yard pick up cheap