50hardtopjerry
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Age: 70
Loc: Chicago Area
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 08-11-12 05:18 PM - Post#2258249
My Master Parts Catalog in 1929 to 1950. It lists the front motor mounts as p/n 3659291 for 1950 PASS w/P.G. the 1935 to 1950 ALL PASS (exc. FC, GB, HB, Jb, P.G.)used p/n 3693425 which I was able to find several sources for. However I cannot find a source for the Power Glide mount. I found both parts on Steele Rubber Products website where they would revulcanization your cores with a small diagram of both parts, the power glide unit is only 1/8 of an inch smaller then the standard trans one? Any reason not to use the standard trans mounts which are easy to find?
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 bobg1951chevy
"6th Year" Silver Supporting Member
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08-11-12 05:30 PM - Post#2258252
In response to 50hardtopjerry
Any reason not to use the standard trans mounts which are easy to find?
Maybe its my age or bad eyes, but I see you talking about front mount, then tranny PG mount.
If the part numbers are different, the part will be different, as well.
Here is a PG mount from Filling Station, if that is what you are seeking.
http://www.parts123.com/parts123/yb.dll?parta~dynd...
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50hardtopjerry
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Posts: 37
Age: 70
Loc: Chicago Area
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08-11-12 07:12 PM - Post#2258281
In response to bobg1951chevy
Bob, the parts book calls for a different front mount if powerglide is used. I am not talking about the transmission mount. Do the following search on Google "1950 Chevy 3659291", then check out the Steele link, on my search it was on the top of the page. It will open to a page saying Motor Mounts. Use the down arrow to look down the page and you will see both of the part numbers I referenced. The only difference I can see is a 1/16 of an inch on width.
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bobg1951chevy
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08-11-12 08:11 PM - Post#2258297
In response to 50hardtopjerry
Bob, the parts book calls for a different front mount if powerglide is used. I am not talking about the transmission mount. Do the following search on Google "1950 Chevy 3659291", then check out the Steele link, on my search it was on the top of the page. It will open to a page saying Motor Mounts. Use the down arrow to look down the page and you will see both of the part numbers I referenced. The only difference I can see is a 1/16 of an inch on width.
Let me get back on this, was not certasin what end you were looking for. 
There just has to be another "difference" in the mount, above and beyond the 1/16" width.
My GM book does not show the frt PG 291 version mount, but does show the 425.
http://chevy.oldcarmanualproject.com/1929_54chevyp...
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bobg1951chevy
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08-11-12 08:45 PM - Post#2258309
In response to bobg1951chevy
The Filling Station says to use SAME front mount for PG and standard.
Chevs of the 40's says nothing, no mount.
NCA says their mount is for "stick only"
Obsolete Chevy says 425 mount is being used for stick AND PG. Obsolete has many NOS parts. I would use the 425.
http://www.parts123.com/PartFrame.asp?ZTM=cadeflke...
TIM TYGART'S OBSOLETE CHEVROLET PARTS: 29-54 CHEVROLET CAR (800) 248-8785
Year Description Comments Part
No. Price Pkg Xref More
Info Buy
Qty. Buy
Item
1935-1951 FRONT MOTOR MOUNT all 216 3693425 31.00 Each Xref Info
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50hardtopjerry
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Posts: 37
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08-13-12 07:06 AM - Post#2258720
In response to bobg1951chevy
Bob
Thanks for your help, it does seem like there should have been a reason for the 291 front mount, perhaps because of the 235 engine in the powerglides. But at least two sources say "use the 425 and they are available, so thats good enough for me.
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bobg1951chevy
"6th Year" Silver Supporting Member
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08-13-12 02:54 PM - Post#2258888
In response to 50hardtopjerry
Bob
Thanks for your help, it does seem like there should have been a reason for the 291 front mount, perhaps because of the 235 engine in the powerglides. But at least two sources say "use the 425 and they are available, so thats good enough for me.
I'm very curious as to the difference, but, like you, would use the 425.
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Part Timer
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08-14-12 08:52 AM - Post#2259129
In response to bobg1951chevy
I have a lot of the same questions but I hope this site http://www.stovebolt.com/techtips/engines/moto r_mo... has some great pictures and assembly information.
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50hardtopjerry
Member
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Age: 70
Loc: Chicago Area
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08-14-12 04:35 PM - Post#2259287
In response to Part Timer
The link is very helpful if your application is a truck, but for me, it was also helpful as I had been wondering that those square holes in the bottom of the timing gear mounting plate were for. Now I think I know.
Edited by 50hardtopjerry on 08-14-12 04:36 PM. Reason for edit: No reason given.
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Part Timer
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08-14-12 04:38 PM - Post#2259289
In response to Part Timer
This is probably a dumb question but is the front mount different on the 235 in 56 on a car versus a truck? My engine came out of a truck but I am putting in a 52 car. Which mount do I need? The engine has the front plate that looks like the one pictured but the front of the block also has l shaped brackets on it. They are toward the front of the block. The more I try to read up o. This the more confused I get. The engine currently has no mount on it.
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eplantage
Senior Member
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Loc: Southern MN
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08-15-12 08:42 AM - Post#2259555
In response to Part Timer
The front plate on these engines should have the same shape. The difference between a truck/car application has to do with the shape of the front crossmember. Truck crossmemebers are flat and use a single mount pad. Cars have a curved crossmember and use the angled part of the front plate and 2 mount pads. The holes in the car plate are elongated and have a "washer" welded on top. This is to prevent the mount pad from spinning. It's simple to cut/drill the holes needed for your application. Use care though so you don't damage the timing cover when doing so.
Age: 59 at the moment
1950 Chevrolet Sedan Delivery
1953 BelAir Convertible Project
2002 Heritage Springer FLSTSI |
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bobg1951chevy
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08-15-12 09:10 AM - Post#2259562
In response to eplantage
Could the passenger plate be switched with the truck plate?
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eplantage
Senior Member
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Loc: Southern MN
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08-15-12 09:19 AM - Post#2259573
In response to bobg1951chevy
Those plates will interchange, the only difference being the location or lack of holes. When Chevy went to side motor mounts in '52 they eliminated the holes in the plate. The only hassle would be disassembling part of the engine to swap plates. If you were doing a rebuild anyway that would be an ideal time to swap them.
Age: 59 at the moment
1950 Chevrolet Sedan Delivery
1953 BelAir Convertible Project
2002 Heritage Springer FLSTSI |
Edited by eplantage on 08-15-12 09:21 AM. Reason for edit: No reason given.
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Part Timer
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 08-15-12 01:41 PM - Post#2259646
In response to eplantage
thanks that helps me understand a lot. I really apreciate the help. Hope I can return the favor someday.
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usmile4
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08-15-12 02:33 PM - Post#2259671
In response to Part Timer
When I had my 235 rebuilt, I pulled the cam and cover off the 216 and swapped the cover since it was getting torn down anyway. I did tap the lower holes in the block so the cover screws could be installed on the outside not from inside of the pan.
Bill Gommel
49 chevy Styleline (Sold), 51 Styleline 2 dr Special, 235 (from a 61 truck) bored .060 over, Dual Carter/Webers, Fenton Headers, T5- 5 speed with a 56 rear end. |
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bobg1951chevy
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08-15-12 02:58 PM - Post#2259679
In response to Part Timer
thanks that helps me understand a lot. I really apreciate the help. Hope I can return the favor someday.
Keep in mind, we "monitor" favors given out .... keep them in a log. You'll neer know when you'll be called upon to return a favor. 
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