Hello,I'm thinking about doing a swap in my 1991 firebird v6 to either a 350,400 sbc or Grand National Motor.What will be the easiest motor to put in out of those choices and please if you have step by step pictures I will love those this will be my first engine swap so please help it will be a one man show thats me and a bunch of tools please list and tell me everything i need because i dont want to mess up my car she runs very fine now so please help me this time guy's?

 

i got a complete gn drivetrain if needed... that would be AWSOME in our cars!

 

thx how much

 

I think the simplest swap would be the 350/400 or you could consider the 383 like me... Fairly straightfoward to swap to a V8, although the GN setup would be just cool to have...

 

A 350 swap is the easiest. Followed by a 383, or 400, which is only slightly more difficult (slightly).
A GN motor would be a completely different ballpark in difficulty. If this is a first engine swap (sounds like it is), i'd stick to the easy ones. You'll have enough problems as is.

 

the gn motor will bolt in using the v6 motor mounts and the v6 holes in the k-member. then the rest is just hooking up and running the wiring harness.

 

Isnt the "TTA" basically the GN motor?

 

yes. some slight differences, but basicly the same monster.

 

Sorry I sold the 3.1 and brought a 87 z28 5.7 yeaaaaaaaaaahhhhhhh booooooooooi

 

As long as you get the TTA wiring harness(big $$$) it's not that hard of a swap. Just little odds and ends here and there. The only real decision you need to make is what trans to run.

 

use the GN drivetrain harness. and leave the f-body body harness.
200-4Rs are great for that engine, but if your putting a 3400lb car in the 9s you might want to consider a th400. either one of those would be more than sufficiant.

 

Not everyone wants to piece together a wiring harness. It's not THAT bad but I despise wiring

 

someone has already done a GN swap:
http://members.aol.com/j007golden/91firebird.html

 

Besides, he sold that car and bought a V8 car.

 

the topic is still cool!?!

 

Been discussed many, many times, and there's a tech article on it.

 

can you direct me to the tech article about the GN swap?? that is something i've always been interested in