1970 nova ss Survivor

[JayR]

A question that came up on Stevesnovasite. Was the TH400 available on the 1970 SS 350 Nova?

Bob

[Mr70]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JayR</div><div class="ubbcode-body">A question that came up on Stevesnovasite. Was the TH400 available on the 1970 SS 350 Nova?

Bob </div></div>

I don't think it was possible during 1970,based on factory &amp; dealer paperwork I've seen &amp; reserved only for the Big Block.
Of course paper isn't always reflective of what they really did.
If it was,would think numerous owners should be easily able to prove it.

[JayR]

Have now heard from a number of sources that the TH400 showed up in factory installs on numerous SB cars. Seems if a car had a 3 speed automatic, the factory installed whatever they had. If there was shortage of TH350's, they put in TH400's. Apparently, many SS350's have TH400's and even some 307 V/8 cars have them. Few people in those days probably knew the difference anyway. As long as your 3 speed automatic transmission worked reliably nobody really cared what it was.

Bob

[lowmile]

Not saying it's impossible to have a turbo 400 in a SB SS or plain Jain small block, but I have owned 50 or so 68-72's and looked at hundreds more and I have never seen or heard of one. It's not as simple as sticking a 400 in there if you don't have a 350. Different; cross member, output shaft, drive shaft, kick down switch. different front spring for the added weight, As common as the 350 trans were in those Novas I just don't see GM running out. But never say never.

[JayR]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: lowmile</div><div class="ubbcode-body">Not saying it's impossible to have a turbo 400 in a SB SS or plain Jain small block, but I have owned 50 or so 68-72's and looked at hundreds more and I have never seen or heard of one. It's not as simple as sticking a 400 in there if you don't have a 350. Different; cross member, output shaft, drive shaft, kick down switch. different front spring for the added weight, As common as the 350 trans were in those Novas I just don't see GM running out. But never say never. </div></div>

If it can be believed, the paperwork on the SS350 being discussed in this thread, says it has a TH400.

Bob

[iluv69s]

My best friend had a sm blk 70 ss w a T 400 back in about 1980..by then anything may have changed, but we always thought it was original.

[lowmile]

I think in the ad says it has a Turbo Hydromatic Transmission. I may be missing where it says it's a 400.