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By junkyardjeff - 16 Years Ago
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Years ago Streetrodder magazine did a build of a Y block and for a trans they used a FMX,I dont have the magazines any more and I am trying to remember just how they did it. I think they redrilled two holes in the trans case or FOM bellhousing,64 flywheel and there was something about a spacer for the part of the torque convertor that goes into the end of the crank. When I put a 292 in my 55 I want to use the FMX instead of a FOM and COM and does anyone remember this.
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By Hoosier Hurricane - 16 Years Ago
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Jeff: I don't remember how they did it in the article, but here's how I did it. Drill the top two case holes to match the Y bellhousing. The bottom ones fit as is. Use a flex plate from a '59 or later Y, the one with the starter ring gear on it. Put a ring on the snout of the FMX converter that is 1 3/8" ID by 40 mm OD about 1/2" long. Has to be a small block converter, FE engines have a snout that is too big. This will pilot the converter in the cranksaft. You may have to drill the flex plate to match the converter studs.
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By junkyardjeff - 16 Years Ago
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I think that is how they done it but its been a few years ago and using the original FOM bellhousing and air cooled parts it will confuse a few people if they would look under the car.
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By Hoosier Hurricane - 16 Years Ago
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Oh, if you're going to use the old air cooled converter, you can use your existing flex plate, the starter gear is on the converter front cover. If you use the air cooled converter, you have to change the front pump to the FOM one. And if your original input shaft is 17 spline, you have to also swap in the FOM input shaft. Or try to find an air cooled converter with a 29 spline turbine, which will fit the FMX input shaft and the FOM front pump.
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By peeeot - 16 Years Ago
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Hoosier Hurricane, are the steps you outline comprehensive, or are there also major driveshaft, oil cooler, crossmember, and linkage issues to sort out when making such a swap?
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By junkyardjeff - 16 Years Ago
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I am not going to use the air cooled torque convertor,I just want to use the aircooled bellhousing for the original look.
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By Hoosier Hurricane - 16 Years Ago
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Peeeot: Yes to all of your questions, but it is doable.
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By Gerry - 16 Years Ago
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Might also use the tailshaft from the FOM, I think that will allow you to use the correct speedo cable if your car is pre 57. Gerry
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By junkyardjeff - 16 Years Ago
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Since I have a C-4 in it I have a speedo cable off a 65 galaxie in it now but will hope I remember that if I do this again with another 55 or 56.
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By marvh - 12 Years Ago
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Hoosier Hurricane (7/3/2009)
Jeff:
I don't remember how they did it in the article, but here's how I did it.
Drill the top two case holes to match the Y bellhousing. The bottom ones fit as is. Use a flex plate from a '59 or later Y, the one with the starter ring gear on it. Put a ring on the snout of the FMX converter that is 1 3/8" ID by 40 mm OD about 1/2" long. Has to be a small block converter, FE engines have a snout that is too big. This will pilot the converter in the cranksaft. You may have to drill the flex plate to match the converter studs.
A question for John:
I have done many conversions to the FMX using a cruise-o-matic convertor, however have no experience using an FMX convertor with the FMX transmission behind a yblock. I am doing a FMX transmission for a friend at the moment to install behind his 312. The cruiseomatic converters are getting so had to find anywhere and more so in Canada as the Y-block was not used in cars after 1958
We wish to use a FMX converter due to availability and available stall speed options. I was looking on the web and see there are 3 different converters for a small block, some have the extended snout and others cupped pilot and the pictures of them do not show the pilot side of the converter.
The extended snout 302 small block FMX converter I have pushes the converter to far away from the flex-plate as it has approx 1/2" longer pilot snout than an cruiseomatic converter
Do you recall what engine/car the converter you used was from when you did your conversion.
thanks
marv
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By Hoosier Hurricane - 12 Years Ago
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Marv, the stall converter I use was built for me with Y block dimensions on the front half and FMX dimensions on the back. Bolted right in.
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By marvh - 12 Years Ago
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Thanks John for the info.
Do you recall the shop that did this conversion conversion?
marv
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By PF Arcand - 12 Years Ago
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jyj: the Street Rodder series article you don't have is Sept. 1999. You may find it at a swap meet. It references a company called JPT (transmissions, if still in business?) for the FMX info. That's in Eaton Rapids Michigan at 320 Hamman St. Ph.# 517-663-0578. Owner then was Jim Paquet. Hope this helps?
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By Hoosier Hurricane - 12 Years Ago
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Marv: Coan Engineering in Kokomo, IN. They are still in business, but they built my converter in '83. They may not have any recollection or records of it. It is a 10", 3500 stall.
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By pegleg - 12 Years Ago
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There's an outfit in Denver, Torque Converters Inc, that can change the pilot to Y block style. Most FMX converters seem to be Small block types. Those can be changed out for roughly 100 bucks or so plus shipping. He's done two for me and they both fit.
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By marvh - 12 Years Ago
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Frank:
Do you have any contact info for that company. I tried to Google it and came up dry.
marv
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By pegleg - 12 Years Ago
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Marv, I do, i''l; get it and post it tomorrow. Not home now. Frank
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By pegleg - 12 Years Ago
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Marv, It's Chrisman Torque Converters,Inc. in the Denver area. There's a note on the web site that they're moving to "a nem location" and I got no answer to my last email. so I don't know what to tell you now
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By marvh - 12 Years Ago
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Thanks Frank.
I tried phoning the contact number and all I got was a recording that the phone was out of service.
Anyway I will keep trying.
thanks again
marv
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