Need help with a 3.4 swap (Page 1/1)
SpunkChicken JUL 21, 11:07 PM
First post here, but have read through a bunch of posts on here trying to find the info I need.

Backstory - A friend and I started working on his 1985 GT probably 12 years ago. He wanted to do a swap for a 3.4L. He bought the block and had it machined. we started putting the pieces together when he got sick and passed away. I didn't go back to the car as it wasn't mine. A few years go by, and his wife wants the car gone and offers it to me. Of course I say yes, and take it. I didn't have the funds to deal with it at the time so it went and sat in a friends yard for a few more years. I finally have the funds and a limited amount of time (I have small children) to go back to it.

problem I'm having:

there is a 3.4L in it, but I don't know the firing order, or which is number one cylinder. I know this seems basic, but it's next to impossible to find some of this online. Also, I have no idea if I have the correct starter on it, or distributor.

Any help or advice would really be appreciated.

thanks
Patrick JUL 22, 02:59 AM

Sorry to hear about your friend.

It would be helpful if you mentioned which 3.4 this is... push rod version (like the original 2.8), or DOHC.
SpunkChicken JUL 22, 09:23 AM
Thanks for that! I want to finish the car as a tribute.

it is not the DOHC, but I'm not entirely certain which vehicle the 3.4 came out of. I believe it was out of a 95 Camaro, but not certain. there are hardly any casting marks on the block, but I will see what I can find.
Blacktree JUL 22, 11:39 AM
The 3.4 V6 (all versions of it) have the same firing order as the 2.8 V6 used in the Fiero. The numbering of the cylinders is also the same.

Here's a link: https://www.fiero.nl/forum/...010924-2-009061.html

Best of luck with the project!

[This message has been edited by Blacktree (edited 07-22-2022).]

SpunkChicken JUL 22, 01:04 PM
this is great! thanks.

will let you know if I can get it to start!