Bill Hincher Posted October 8, 2008 Report Share Posted October 8, 2008 I built an adaptor for the Gm auto trans to bolt up to the 4G 63 or the wide block 4G64 I believe the wide block is the same bolt pattern as the G54B http://www.billsautofab.com/images/GMtransadaptor.jpg http://www.billsautofab.com/images/GMtransadaptor2.jpg http://www.billsautofab.com/images/GMtransadaptor3.jpg I built a coupler from aluminuim just to test the fit, the adaptors I build for guys is built from 4341 steel http://billsautofab.com/images/GMcoupler5.jpg http://billsautofab.com/images/gmflywheel3.jpg http://billsautofab/images/gmflywheel5.jpg I used a standard chevy flywheel with a reduction gear starter in the first few that I made,later I cahnged to a Toyota starter from an R 22 engine to hold the cost down http://billsautofab.com/images/GMcoupler3.jpg http://billsautofab.com/images/finished5.jpg you can see the assembly on you tube at Link to comment Share on other sites More sharing options...
Minagera Posted October 8, 2008 Report Share Posted October 8, 2008 Impressive sir. I am thinking the the sliced block is more awesome though. Link to comment Share on other sites More sharing options...
Bill Hincher Posted October 8, 2008 Author Report Share Posted October 8, 2008 I had to fit the block in my bridgeport to get the rear dimensions Link to comment Share on other sites More sharing options...
Hoosierquest Posted October 8, 2008 Report Share Posted October 8, 2008 SWEET! :ylsuper: Link to comment Share on other sites More sharing options...
button Posted November 6, 2008 Report Share Posted November 6, 2008 (edited) Hey Bill. My only concern w/ the starter shown is if you have the stock intake manifold (narrow 4G63), will it still fit? and its kind of hard to tell, but can you change the starter without dropping the trans? I'm very interested in your setup. If only I didn't buy buschurs. Edited November 6, 2008 by button Link to comment Share on other sites More sharing options...
Bill Hincher Posted November 6, 2008 Author Report Share Posted November 6, 2008 (edited) the starter is in the original 4G63 location and it clears the intake very nicely http://www.billsautofab.com/images/GMtransadaptor2.jpg I can move the starter where ever you want, I have had many of other adaptor plates sent to me and I have changed them to use my coupler , but it dont look as clean as the original product and I include the top portion of the bellhousing face instead of cutting it off for more strength. I also leave in a lower skirt to accept a lower bolt pattern if desired, I am not a big fan of a 4 bolt bellhousing system http://www.billsautofab.com/images/gmchange.JPG http://www.billsautofab.com/images/gmchange2.JPG I am also not a big fan of custom 'one of a kind' stuff you cant get the day you need it, so I used all over the counter stuff for the GM flywheel/converter. The starter I change to the 84 through 92 Toyota starter because that was the universal reduction gear starter Jegs was offering @ $150.00 , and I just changed the gear on the Toyota starter for 15.00 bucks Edited November 6, 2008 by Bill Hincher Link to comment Share on other sites More sharing options...
heefner Posted November 16, 2008 Report Share Posted November 16, 2008 How much will the plate and flange run? I've got a the G54b and would like to be able to run some sort of auto with a trans break... over drive too but we'll see. Link to comment Share on other sites More sharing options...
Bill Hincher Posted November 16, 2008 Author Report Share Posted November 16, 2008 the adaptor and coupler sell for $275.00 then all the parts are over the counter small block Chevy from the coupler back, the only change I made was in the starter, I used a Toyota starter instead of the Chevy reduction gear style and saved about $ 100 bucks Link to comment Share on other sites More sharing options...
Bill Hincher Posted November 21, 2008 Author Report Share Posted November 21, 2008 I have found that most things that look simple are very complex, and most things that look very complex, are not really well thought out. Complexity always seemed like after thought to me, simple clean lines, show thought and care from the engineers. The material this coupler s made of is 4310 steel, its heat treatable if desired, but I assure you , its not needed http://www.billsautofab.com/images/crankshaft%20coupler.jpg I like to take great care in my demensions, i wanted to create the back of the original M/T flywheel for my coupler, to make absolutly certian on my centers http://www.billsautofab.com/images/crankshaftcoupler1.jpg The holes are all drilled witha CNC bridgeport, first in metric for the Mitsubishi crankshaft and then in standard for the GM flywheel http://www.billsautofab.com/images/crankshaftcoupler2.jpg http://www.billsautofab.com/images/crankshaftcoupler6.jpg I cut off a Mitsubishi crankshaft end just to allow testing in my lathe, I chuck it in exactly square before testing http://www.billsautofab.com/images/crankshaftcoupler4.jpg with flywheel installed , the whole system is spun at top speed, the flywheel must spin true http://www.billsautofab.com/images/crankshaftcoupler7.jpg http://www.billsautofab.com/images/crankshaftcoupler8.jpg all my adaptors come with the bolt pattern for the narrow block/wide block and second gen 4G63 engine blocks included http://www.billsautofab.com/images/crankshaftcoupler11.jpg I used a toyota truck starter just because they are cheap, they are a generic reduction starter used on everything, all that is needed is a $15.00 pinion gear from jegs to use this starter http://www.billsautofab.com/images/crankshaftcoupler15.jpg the starter fit is excellent, this is an OEM intake manifold for the 4G63 http://www.billsautofab.com/images/crankshaftcoupler17.jpg the adaptor mounting bolts are slightly reccesed because my adaptor plates are 3/4 not 1/2 plates, I needed the extra space to allow the upper apron for the bellhousing and I added an extra 3 mm in the bolt lands of the coupler to increase the horsepower the coupler could withstand http://www.billsautofab.com/images/crankshaftcoupler18.jpg Link to comment Share on other sites More sharing options...
Bill Hincher Posted December 3, 2008 Author Report Share Posted December 3, 2008 I have been building so many of these adaptors I have had to develop a pattern so they can be one peice casted. that way I can save time from all the machine work that goes into doing a bare plate http://www.billsautofab.com/images/transadaptor1.jpg I will be adding some strength in the design by increasing the thickness of the plate to allow a thicker coupler. That way I can use the manual trans flywheel bolts instead of the auto trans crank bolts http://www.billsautofab.com/images/transadaptorplate.jpg these are designed to use the wide block or the narrow block mitsubishi engines Link to comment Share on other sites More sharing options...
Bill Hincher Posted December 23, 2008 Author Report Share Posted December 23, 2008 (edited) I keep adding details to my one peice unit I am building for the GM set up. This is done in the effort to gain as much strength as I can in these high output engines you guys are building http://www.billsautofab.com/images/updateGM1.jpg http://www.billsautofab.com/images/updateGM3.jpg http://www.billsautofab.com/images/updateGM4.jpg the difference in this kit is the thickness of the new coupler http://www.billsautofab.com/images/updateGM15.jpg the original auto trans flywheel bolt ( on the rt) was shorter and had a smaller shoulder surface then the manual trans flywheel bolt ( on the lt) http://www.billsautofab.com/images/updateGM17.jpg the bolt land was originally 3mm thick on the auto flex plate, I expanded that to 7 mm with this coupler, the new coupler has a 10mm thick to accomidate the manual trans flywheel bolt http://www.billsautofab.com/images/updateGM18.jpg the added thickness moved the flywheel back anoth 4 mm http://www.billsautofab.com/images/updateGM22.jpg this will be the new version of coupler http://www.billsautofab.com/images/updateGM6.jpg the starter depth will have to be adjusted http://www.billsautofab.com/images/updateGM8.jpg http://www.billsautofab.com/images/updateGM9.jpg the original plate was 3/4 inch thick, the new one will be about 1 inch http://www.billsautofab.com/images/updateGM14.jpg Edited December 23, 2008 by Bill Hincher Link to comment Share on other sites More sharing options...
SOTTY Posted December 26, 2008 Report Share Posted December 26, 2008 Nice :thumbsup: . Link to comment Share on other sites More sharing options...
KrazedZ Posted January 3, 2009 Report Share Posted January 3, 2009 Awesome!! will this work with a 5speed conquest to convert to a GM 700r4 trans? is there enough room with the trans tunnel for the GM trans? Thanks Tony Link to comment Share on other sites More sharing options...
Bill Hincher Posted January 3, 2009 Author Report Share Posted January 3, 2009 I have not mounted a trans in the car for tunnel clearence, I probably should do a couple convertions and test it , I just havent had time the GM 400 is a bit different, the only change is I have to build in more depth for converter clearence, GM states 1/8 free travel on all thier converters except the 400 and that calls for 3/16, so I have to know what you want before I cut the adaptor Link to comment Share on other sites More sharing options...
Bill Hincher Posted January 14, 2009 Author Report Share Posted January 14, 2009 I had 10 of these new GM auto trans adaptor plates built , now I have to test machine them and prove them out http://www.billsautofab.com/images/GMtransadaptor10.jpg I have my source lined up for heat treating the couplers so these should be done quickly http://www.billsautofab.com/images/GMtransadaptor9.jpg These will fit the wide block and the narrow block but I must know whick bolt pattern you want before maching them, because they will only except one or the other Link to comment Share on other sites More sharing options...
Bill Hincher Posted January 27, 2009 Author Report Share Posted January 27, 2009 (edited) I got these GM adaptor pretty well worked out, these are a one peice casting instead of two plates welded together http://www.billsautofab.com/images/GMtransadaptor11.jpg http://www.billsautofab.com/images/GMtransadaptor12.jpg http://www.billsautofab.com/images/GMtransadaptor15.jpg http://www.billsautofab.com/images/GMtransadaptor16.jpg http://www.billsautofab.com/images/GMtransadaptor17.jpg http://www.billsautofab.com/images/GMtransadaptor18.jpg I have a few demensions to work out for depth and thats it Edited January 27, 2009 by Bill Hincher Link to comment Share on other sites More sharing options...
Convette Posted January 28, 2009 Report Share Posted January 28, 2009 damn man, thats amazing machine work right there. My question.... what about the GM 6speed manual? I'm not a 2 pedal guy... How much different are they? Link to comment Share on other sites More sharing options...
Bill Hincher Posted January 28, 2009 Author Report Share Posted January 28, 2009 we talked about it at project zero and the cost invovled for the flywheel and clutch kinda turned me off, so I am going to stay with building bellhousings for the T56 http://www.billsautofab.com/images/t56adaptor.jpg http://www.billsautofab.com/images/t56adaptor1.jpg http://www.billsautofab.com/images/t56adaptor2.jpg I been researching the needed clutch set up and it seems most guys agree that the LS1 is the preffered set up. The LT1 is a pull style throw out bearing, when the LS1 is a push style. The pull style was later changed back to the push style set up. Further more, most guys update thier LS1 with the LS6 set up, which GM sells a complete clutch with the flywheel included. If I have to use the 168 tooth flywheel, I have to change the starter, I dont know if the starter pinion may hit the sidewall of the GM bellhousing On all the aluminum flywheels I have seen,they cost $350.00 plus and some venders claim they need balanced to the engine and some say they are nuetral balanced for internal balanced engines Link to comment Share on other sites More sharing options...
mytsi Posted March 28, 2009 Report Share Posted March 28, 2009 Have you finnished this plate for use with a wide block? I'm looking to use a LT-1 T56 (already have), exaclty as you have shown, I just need the wide block pattern. Please le me know, I'd like to get this going soon. 1 Link to comment Share on other sites More sharing options...
Bill Hincher Posted March 28, 2009 Author Report Share Posted March 28, 2009 Have you finnished this plate for use with a wide block? I'm looking to use a LT-1 T56 (already have), exaclty as you have shown, I just need the wide block pattern. Please le me know, I'd like to get this going soon. I looked at the option long and hard ( kinda like 3rd grade) If you are serious about trying it, I will work with you but I think there were a couple things that had to be overcome First was the flywheel had to be nuetral balanced and 153tooth, Chevy starters are mounted below the bellhousing, the wider flywheel with a high starter mount made the starter hit the bellhousing on the inside. the biggest problem outside of the flywheel demensions is the cost, for god's sake? $500.00 bucks for a flywheel? after you pay for a clutch and a starter , you got $1900.00 bucks in a $2500.00 car! I would have to develop a different coupler because you need a pilot bearing for the input shaft of the trans. The fingers I use on my coupler are like a lathe chuck, they guide the convertor into center and the also center the flywheel, well, after the flywheel and the convertor are bolted in place at center, the fingers in my coupler are not doing any work, but in the T 56 option, the pilot bearing would be keeping the input shaft centered when the clutch was disengaged Having said all that, it can be done , I would have to build a thicker adaptor plate and a two peice coupler to accept the pilot bearing I will be building the wide block version of the R 154 next Link to comment Share on other sites More sharing options...
mytsi Posted March 28, 2009 Report Share Posted March 28, 2009 I got that custom flywheel long ago in the first group purchase. 500 HP clutch : http://cgi.ebay.com/ebaymotors/1993-97-CAM...sQ5fAccessories Flywheel: http://cgi.ebay.com/ebaymotors/Fidanza-fly...sQ5fAccessories That comes to $788 shipped for the clutch/flywheel and reused stock starter, so I'm not sure where that $1900 figure comes from. So this plate you have will require a GM flywheel and a generic styled toyota starter? I'm sure the local shop I use for my motor can machine al LS-1 flywheel down for neutral balance. It woudl be nice to use the LS-1clutches anyway. Link to comment Share on other sites More sharing options...
Bill Hincher Posted March 29, 2009 Author Report Share Posted March 29, 2009 fair enough, well, where do we start? I guess the first consderation would be the coupler, that would give us the depth of the plate, then we would reposition the starter to the lower drivers side of the engine to aviod the exhaust But you know? Chad already offers this Link to comment Share on other sites More sharing options...
TainterRacing Posted August 25, 2009 Report Share Posted August 25, 2009 (edited) Awesome!! will this work with a 5speed conquest to convert to a GM 700r4 trans? is there enough room with the trans tunnel for the GM trans? Thanks Tony NO a 700r4 will have to have the Tunnel removed and make a new one. I know as I have a 700r4 in my quest. I have not got the shifter in but dont think thats going to be bad at all. Edited August 25, 2009 by TainterRacing Link to comment Share on other sites More sharing options...
Bill Hincher Posted April 24, 2010 Author Report Share Posted April 24, 2010 I did the GM adaptor a long time ago, this system adapts the wide block 464 or the narrow block 463 or the g54b to any GM auto transhttp://billsautofab.com/images/GMadaptor10.jpghttp://billsautofab.com/images/GMtransadaptor11.jpghttp://billsautofab.com/images/GMtransadaptor12.jpghttp://billsautofab.com/images/couplers.jpghttp://billsautofab.com/images/crankshaftcoupler15.jpg Link to comment Share on other sites More sharing options...
button Posted September 5, 2011 Report Share Posted September 5, 2011 To sum it up,You supply the adapter plate and crank adapter. bolts? We have to get:153 tooth gm small block flexplate,accompaning bolts,whatever torque converter works on a th350 will work assuming you get the flywheel with bolt holes for it in 10.75" or 11.5" patterns,accompaning bolts,Starter gear? what part number?84-92 toyota starter from what model vehicle? or part number? I plan to get my parts from Summit, Jegs, or Lane Automotive. I'll probably pick the one that has all the parts in stock.just trying to get an itemized list, make it easier for others to purchase. this needs to be more widely known. Link to comment Share on other sites More sharing options...
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