Q: Transmission Swap 1967
I was wondering if anyone could tell me what is involved in swapping a powerglide tranny out of my 1967 Firebird for a 400 Turbo or 350 Turbo — which would be easier? (Would I have to change cross-member, yolk, or drive shaft on either of these applications?) I would appreciate any input you would have for me on which would be the best to do.
A: 350 would be a straight swap. 400 will need a new crossmember and front driveshaft yoke and a shorter driveshaft. Depending on which year, the kickdown on the 400 will also be different. good luck.
A: I just did this swap in my 1967 convertible. The above was correct in everything it said, I also found that my two speed shifter had too much throw, so you’ll have to put in a 3 speed unit or buy a conversion kit with the proper detents and new linkage rod. At the same time you may as well replace the plastic indicator. This swap is well worth the effort, I really enjoy the extra performance of the 3rd gear. Good Luck! P.S. I got my cross member and drive shaft from Steve Hansen, who has been mentioned before in this forum.
A: I spoke with my local transmission shop who said that the Turbo Glide and the Turbo 400 are exactly the same. No modifications needed. The Turbo 400 requires a kick down cable from the carb., where the Turbo Glide uses an electric switch. That’s the only difference. Let me know how it goes.
Any proposed updates, changes, pictures, and/or corrections, please use our comment section below (may need to click on permalink to access comments feature). Information is subject to change and offered as is without any warranties or guarantees. Please review our Term's Of Use for more information.
Content last modified: January 20, 2014 at 10:16 pm