What tranny

[Koll]

I might have to give zigs a call up, but anyawys. Whats a good base tranny that will hold up the torque of a big block. Lets just say this big block will be putting out between 650-750HP and about same torque

[Tru2Chevy]

Manual, Auto? OD?

A TH-400 would be a logical choice....and a GearVendors OD if you want OD and got the coin to spend....

- Justin

[WildBillyT]

We are running a CKPerformance TH400 behind my brother's 427- 621hp, 555 lb-ft. Hasn't been to the track yet but it's beefy as hell.

[Ian]

I think rockland standard gear has a T-56 thats rated for over a thousand hp. I would imagine it would cost about a dollar per hp its rated for though

Otherwise, your options are a very well built TH-350, TH-400 or a powerglide. Tremec or Keisler might have a five speed that can hold that, but you'd have to check.

[IROCdan330]

ziggy can built one hell of a 400.

[johnjzjz]

unless you are going with an overdrive unit all the transmissions for gm cars have the same top gear ratio 1 to 1 stick or automatic a pro mod 1500 HP or a weekend 300 HP bracket car will always go for a powergide but in your case it might be faster down the track with a 3 speed as a duel purpose car street / track combo better 60 foot and harder charge mid track jz

[badzracing]

I am going to a reverse manual valve body 400 in my truck REAL soon. 400's are my pop's specialty too!

[Turbo V6 Camaro]

Rossler 4L60E stage 3 with trans brake 8)