69 firebird needs new trans... need input

[Grambo90]

hey everyone, i have a 69 firebird with a pontiac 350 with a 3 speed slushbox... no fun, especially at the pump. I want to drive it everyday, so im going to rebuild the engine back to original specs except for a mild cam because i want decent mileage. So my question is... what transmissions out there will fit the poncho block and the trans tunnel (i dont want to cut the car up) i was thinking the cheapest route would be a 460L-E, but what about a t-56 or a tko-500. any help is greatly appreciated.

[RBR]

I put a TKO 600 in my 69 bird and so far I love it. No cutting if you get the off set shifter.

[Grambo90]

thanks for the help man... i thought i would get more response but whatever. i was thinkin about putting a 5.3 LM7 but its alot of trouble. what MPG do you get or is it a built motor?

[RBR]

I'm not sure about the MPG yet, I'm still on my 1st tank of gas. It seems like the gas is lasting for a while so far. I have a mild 350 crate motor.
When I first started this project, I asked alot of probably dumb questions on this forum. Not saying yours is is dumb, but I know how it feels to not get a lot of replies. I really didn't know much at all when I started to build the car. Over all I got a lot of input from this forum.

[Rybar]

Cheapest route, you could probably score a used LT1-style T56 for pretty cheap. You just have to frequent for sale boards looking for them. I am sure you could fab up a cross member pretty easily or get the parts from Tyler at ATS. He's really good with answering any questions you have, the only cutting would be for a shifter hole about 4" further back than a factory manual.

BTW, killer car to have at your age.

[Grambo90]

thanks guys, i really appreciate your help... im very grateful to have this car at my age, now all i have to do is keep gas in it haha

[Moose]

Originally Posted by Rybar

Cheapest route, you could probably score a used LT1-style T56 for pretty cheap. You just have to frequent for sale boards looking for them. I am sure you could fab up a cross member pretty easily or get the parts from Tyler at ATS. He's really good with answering any questions you have, the only cutting would be for a shifter hole about 4" further back than a factory manual.

BTW, killer car to have at your age.

wish he was closer.. I plan on selling my t56 stuff soon since I'm switching to a ls1 t56...

I'd sell everything for a great price, minus the cross member.

[ProdigyCustoms]

Bowler Transmissions makes a adpater for the electronic automatics. 4L60E / 4L80E, etc can all be mounted with the adapter.

[Grambo90]

Whats the difference between a lt1 t56 and a ls1 t56? Also, if I did go t56, doesn't someone make a setoff shifter for the t56 so i wouldn't have to cut a hole in the tunnel? Thanks

[NvrDun71]

Originally Posted by Moose

wish he was closer.. I plan on selling my t56 stuff soon since I'm switching to a ls1 t56...

I'd sell everything for a great price, minus the cross member.

If Grambo90 isn't interested, I would be. Where are you located? PM me some info....