Turbo 350 vs. Metric 200 (stock eliminator)
 

Which one is faster behind a smallblock combo? Heard the stories that the 350 can be as fast if it's high dollar stuff. I also heard the 350 is more durable. I've raced 350's and glides but never a 200. So, if one does a Rossler or another high end piece, will the 200 go faster (quicker)? My concern is not as much about durability. I care more about elapsed time. Are there any problems with a 200 fitting a (68 to 72) Nova? The stick idea is very appealing to me, but my lack of knowledge in the clutch area makes me lean towards the automatic again. Thanks for any replies.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

The 200 fits where the 350 fits, same drive shaft, mount, and cross member, the 200 is actually smaller. Most say the 200 is faster in a small block car. If I were going to a 200, I'd get a McClay, and I'd get the pump modified so a regular turbo converter fit.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

I remember Keith Lynch saying the 200 was quicker than his 350 both quality pieces (so he said)!

I think Rossler does the 200 also. He should be able to give you a good idea

Wish I had the xtra money to buy a good 200 to find out for myself

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Thanks Alan. If it's a bit smaller, then is it lighter as well? Also, with the deep aluminum pan, is the oil capacity the same as the 350?

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Yes ,it is a bit lighter to start.
There are two different factory fans. The deep one holds about one more qt.
Leo (Remac) sells a fabricated aluminum pan.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Yes, a 200 is slightly lighter than a 350, even if the 350 has both aluminum drums, and the 250C shell and gear train.

Given the same depth pan, a 200 holds less fluid than a 350.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

McClay is the only way to go.
I think Scott told me its 26 pounds lighter than a 350. The pump conversion is a good idea I had him do it to my 200. Also the auto 1-2 is a good option to get for consistency. It’s real easy to adjust and it’s an external adjustment. The case brace and needle bearing output shaft are also a good idea. My McClay is considerably faster than my 350 with about the same low gear.
I put over 400 runs in a 3600# car on it before sending it back for freshening and he said it was in great shape. So properly built they are quite durable.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

One more thing I should add and maybe someone like Mark Yacavone who knows vastly more than I ever will about 200’s could comment on this:
You need to let your converter builder know it’s going in front of a 200 with a 350 pump conversion.
Something to do with direction of oil flow and excessive pressure build up in the converter. I heard this from Coan.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Thanks Bill, It most likely has to do with using the support bushing ,either inside the pilot, or in the stator support. I don't build 350 conversion transmissions. I just build straight 200 converters to go with my trans's.
My new 305 converter will be for straight 200s, at first,which I think will be the most popular.
Again, Leo also builds the 350 conversions ,as does Jack Sepanik and a few others.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Mark
Thanks for all the info and help last weekend.I found the valve body was the problem.Talked to Billy Lynn and he told me what to do.Did not get to go to Dallas.But will be ready for PineValley
.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Get the turbo input conversion if you are going to get a 200. The stator tube is suspect. I broke one bad at Cecil County after I spun the tires hard and it took out my good converter and turned it into junk. If you are going to buy a 200, Leo Glassbrener is the guy to use. Great giuy to deal with, and you don't have to wait long. I broke mine the Saturday before Indy, and he had one to me at my trailer Tuesday morning. I put it in right away and 2 days later won G/SA Class in a very tough field. If it wasn't for Leo and the guys at Remac I would have never have been at Indy. I have since put 60+ runs on it and never had an issue. And this is in a 3700 pound car that has run in the 10's quite a few times.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Thanks for all the info. Sounds like some people race the 200 behind a bigblock. I would think it wouldn't go too many passes. Too bad I sold all the 396 blocks I had a few yrs.ago. My friend Kenny, he has a tranny shop, has built every tranny I've ever raced, including the glide for my superstock car. The glide had everything possible in it (ATI) and held up quite well with a brake. Kenny advised me then to go with the turbo spline for it. He uses some of Rossler's stuff, and that's why I mentioned the Rossler name. Guess I need to look for a 200 since I only have a 350 to build.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Jesse, you do not need any 396 blocks. You build a 396 for stock by pouring a production 454 block and sleeving it down to the 396 bore size. The only "old" stock piece you MUST have is a crankshaft.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Alan. A machinist friend told me that awhile back. The appealing part is the thick cylinder walls you get. I bet it's costly, though. I even checked my GM catalog and there is no bowtie replacement. My thing is that I sold a mint block ready to build and three spares, with the crank, heads, and gave the intake to a friend that runs a Nova stocker. I think I am going to do the 69 yr. with a 350/300-290. I have a bunch of 041 heads, 4 bolt blocks, intakes and cranks, steel or cast. Build it light as possible and run E. I don't know that anyone does that yet with a Nova. It is really nice to have all that room under the hood lol. I am a pack rat, except for the 396 stuff, for some reason. I appreciate your help and enjoy the talk.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

Is the reciprocating mass less in a 200 than a 350? Has anyone ever used a 200 in a heavy big block car. When I say heavy I'm talking 4200lbs? Or won't the 200 withstand that type of weight. I have been thinking about that and was just wondering.

Re: Turbo 350 vs. Metric 200 (stock eliminator)
 

They are considerably lighter. The 26# I quoted earlier in the thread I think includes the weight of the case. So the exact difference I don’t know. It also depends on how you have them built McClay can build them with aluminum drums if you want to cough up considerably more money. However in a stocker he told me at best it’s only worth a couple hundredths as the 200 drums are already fairly light.
As for whether a 200 will hold up in your application I couldn’t say but they are being used behind Super Stock and Comp motors but I’m fairly sure in those applications they are seeing far more maintenance than would be expected in a stocker. Probably the biggest question is if the input shaft can take the torque of the big block. As Todd Hoven mentioned the input shaft conversion is a real good idea if you are going to run it behind a big block. And which big block will make a big difference in longevity also there is an awful big difference in torque between lets say a 402 and a LS6.