Momar

I have read on a couple threads where people have mentioned it being done. I am getting a t56, and was wanting to try to use the stock flywheel. My reasoning is that I dont plan on leaving the motor a 350. I want to convert it to a 383 in the near future, but since my torque converter went out I need to do the transmission first. I honestly dont want to buy 2 $350 flywheels. I have a flexplate from a one piece , but I need to get ahold of one from a 2 piece so I can line them up and see what it would take as far as the bolt pattern goes. If anyone has done this or has easy access to the stuff to do this let me know how it looks. I just wondered if it would be possible to do without some holes being drilled partially in the same spots as others and causing oblonged holes.

Thanks

Ben

Dyno Don

iTrader: (7)

I don't think wasteing money on that would make any sense. They are two different animals.

TheGreatJ

I don't see it as a waste of money. Any good machine shop should be able to handle it, and I would THINK that if you just rotate the bolt pattern by 30* then the holes wouldn't overlap. I believe the center hole will need to be opened up also, and the counterweight ground off the flywheel.

Don't expect it to hold up to major abuse though....the extra 6 holes in the flange will weaken the flywheel somewhat. It'll be fine for street driving but I wouldn't take it to the track and run it on slicks.

Momar

Well, I talked to a guy in email that said he has done it. He says that some of the holes do overlap, but it seems to be working for him and has lasted for 1200 miles so far without any wierd vibrations or anything. I guess I may ask the machine shop what they think also. I plan on getting the aftermarket flywheel when I get the 383 done, but I really dont want to have to buy it twice.

Ben

1991tealRSt-topGuy

that doesnt seem too safe

IMHO, i'd consider it a hack job

you can do better

Mark W. Winning

I agree, I do not think I would feel safe doing something like that. Its not like you are doing something that the parts do not exist for. Just think about how much money you would waste if it did not work right.

Momar

Yes, about $250 less than I will waste if I buy a 350 dollar fly wheel and then have to buy another 350 dollar flywheel in 3 or 4 months when I put together a 383.

Ben

1991tealRSt-topGuy

machining flywheel $100


brand new flywheel $350


getting to keep your feet because your quality flywheel didnt let go

priceless



we're only telling you cuz we care

Momar

I know, and honesly I will probably end up buying the new flywheel, but I was just hoping to find a cheaper way to do it since I dont plan on keeping this style flywheel for long since I will be probably going to a 383.

Here's another question. If I get the aftermarket flywheel, can I have it counterbalanced or whatever it is called for a 400 when I go to the 383 or will I actually have to buy another. If worse comes to worse I guess I will end up selling the first one and see what I can get out of it.

Ben

Z28ricer

iTrader: (2)

If you use an aftermarket crank, most of them are already setup for internal balance, so whether you go 383 or not, get the correct flywheel.

88 350 tpi formula

iTrader: (9)

you can buy balance plates for the 383 (400 crank) if needed or a good machine shop can balance it for you. I thought about the flywheel thing too but, I need my feet to drive.

Momar

I think I am going to get the flywheel. Do the balance plates cause any problems? I may go that route when I do the 383.

Ben

88 350 tpi formula

iTrader: (9)

http://cgi.ebay.com/ebaymotors/ws/eB...category=33616

this one is a little on the higher side but, still not too bad of a price. I am using one on my car now but, I am using a t-5 right now. it goes between the crank and fly wheel so you flywheel does stick out that little bit. there should be no problem with the t56 If there is I will let you guys know as soon as I get it in the car

Momar

Well, I have the t56 in the garage now. It has a centerforce clutch and B&M ripper shifter. The flywheel should be here tuesday. I bought a used crosmember which is supposed to be shipped monday. It looks like I will be haveing some fun soon. I was going to pull the car in the garage and take the tranny out and start getting to work on the pedals, but the roof is being redone and the dumb ****ers put the dumpster in the middle of the driveway instead of on one side so now I cant get it in the garage. Hopefully I will be able to get the auto out after work throughout the week if they move that dupster. I cant wait to get that tranny in there. It is a 93 m29 so it is only rated at 400 ft lbs but from what I have read on the fourthgen boards they are in reality not really any weaker than the 94+ trannies. At least I got the close ratio one from 93(same 1-4 ratios as the z06) I got it for 600 so I cant complain to bad other than the flywheel costing 350(at least it matches the clutch and pressure plate now).

Ben

Mark W. Winning

Cool, I do not see where having the 93 tranny would be much of an issue. If you are not planning to put a high horsepower motor in front of it and drive it hard, it should be fine. The 93 transmission is just not the first choice people normally have. Its the old " as long as I am going to do it, I might as well choose the better one" deal. It doesn't mean its junk...

Good luck with the swap. Its not that bad. I did mine over the weekend. Make sure you use the 4th gen clutch and slave cylinder though.

Mark

lbrohez

maybe you could glue a aluminum sheet over you flexplate you have on it now.

84L69TA

My friends dad redrilled the flywheel on his 55 Chevy that he put a 6-speed in. It seems to be working so far. But you couldnt pay me to drive a car with **** like that done to it. He is also a sh!tkicker though and that explains most of the stuff he does. I wouldnt do it man.

Momar

I honestly dont have that much fear of tearing up this tranny because of it being a 93. I have asked a couple differnt times about them on camaroz28 and though they are rated weaker they are not really considered to be weaker in actuallity for the most part. I also have the higher rated of the 93's too. Here are a couple of posts I have had about the strengh of the 93's. http://web.camaross.com/forums/showt...hreadid=149465 and http://web.camaross.com/forums/showt...threadid=77078 There are some people pushing some serious power through them including one guy putting 705 rwhp throuh a m28 which is the lower rated of the 93's.

As far as my clutch, I have a centerforce dual friction clutch for it. I also have a gm master/slave cylinder for t56 since I am going from an auto. I do plan on seeing if this thing will take some power. My motor should be putting out 400+ when I get my new heads and intake installed, and I am hoping to stroke it and go a bit larger on the cam in the near future. I also have a B&M ripper shifter with the adjustable stops so it takes the impact instead of tearing up the forks in the trans by overshifting. I cant wait. It should be a blast. Also the gear ratios from this trans will work great with my 3.45s untill I can get something else where as I would be more doggy with the 2.66 first of the 94+ compared to my 2.97.

Thanks

Ben

Momar

Dont worry man. You must not have read clear through the thread. I already stated that I purchased a centerforce flywheel. I was thinking about it if the holes didnt overlap and the center hole didnt have to made so big that it hit some of the origional bolt holes, but it didnt work out that way. I found out that I can probably use the one I am buying with an extearally balanced crank by either having it balanced or getting a weight that goes on behind the flywheel. I may end up doing that when I go 383 but thats not something that weakens the strenght of the flywheel. I was just kind of thinking about the fact that a clutch that lets go can take out a bellhousing. I would hate to see what a flywheel would do.

Ben

84L69TA

Whoops...read it wrong.