TH 400 vs 350 vs 200 metric

Kegracing · 09-18-2010, 01:41 PM

While not perfectly back to back passes, I had almost identical weather and track prep, same track, and had a chance to test the 200 vs 350. Both were 2.75 low units, both pretty good trans and same converter. 350 had some light weight stuff and roller bearings, but was not a high dollar unit... This was a 87 Firebird, 305 stocker. Broke the 200 case. Put the 350 in it, and lost about .04 from best numbers I could measure, using incremental times, etc. The .04 was not worth the fear of breaking another 200, to me... MPH was about the same.

I stayed with the 350 in that car, and have a 350 in my current car. My opinion, we all have them, is spend the same (or less) money on a good 350 trans. vs the 200, and never have to worry about it. The 400 is stronger, but heavier and less efficient. A lot of the high dollar big block stockers, that could run anything (Fletcher for example) are using the 350.

I know there are some great builders out there, not trying to argue that, and all trans have their advantages... just my opinion.

Good luck.

Ken

09-18-2010, 01:41 PM	#6
Kegracing Member Join Date: Jun 2002 Location: Red Oak, TX Posts: 441 Likes: 0 Liked 0 Times in 0 Posts	Re: TH 400 vs 350 vs 200 metric While not perfectly back to back passes, I had almost identical weather and track prep, same track, and had a chance to test the 200 vs 350. Both were 2.75 low units, both pretty good trans and same converter. 350 had some light weight stuff and roller bearings, but was not a high dollar unit... This was a 87 Firebird, 305 stocker. Broke the 200 case. Put the 350 in it, and lost about .04 from best numbers I could measure, using incremental times, etc. The .04 was not worth the fear of breaking another 200, to me... MPH was about the same. I stayed with the 350 in that car, and have a 350 in my current car. My opinion, we all have them, is spend the same (or less) money on a good 350 trans. vs the 200, and never have to worry about it. The 400 is stronger, but heavier and less efficient. A lot of the high dollar big block stockers, that could run anything (Fletcher for example) are using the 350. I know there are some great builders out there, not trying to argue that, and all trans have their advantages... just my opinion. Good luck. Ken