a few weeks ago i blew up the 305 in my car. this weekend was my 21st bday, and my dad gave me a 400 sbc from a early 70s impala. i spoke with my engine dude and i will be making 400-450 horse after he's done with it.
my car right now is 700r4. what are my options for a standard trans? 4spd, 5spd, 6spd i dont care. but like, do i need a trans with the provisions for the torque arm or is that something that can be fabbed up?
i know these cars came with a t5, but is a t5 buildable to handle the tq from my 400?
btw this is the car it'll be going in:
had to ***** lol. thanks!
my car right now is 700r4. what are my options for a standard trans? 4spd, 5spd, 6spd i dont care. but like, do i need a trans with the provisions for the torque arm or is that something that can be fabbed up?
i know these cars came with a t5, but is a t5 buildable to handle the tq from my 400?
btw this is the car it'll be going in:
had to ***** lol. thanks!
85MikeTPI
Senior Member
close
Dec 16, 2025
A LT1 T56 will be almost a direct swap and documented in the Sticky.. Since you'll be using a 2pc RMS, you'll need to get a conversion flywheel from Mcleod,Centerforce,Fridenza,etc..