Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Classic Industries
American Auto Wire
Danchuk Catalog
Hellwig Products IncPerformance Rod & CustomNu-Relics Power Windows



Username Post: 1947 stylemaster trans swap        (Topic#360838)
The Flash 
Newbie
Posts: 25

Reg: 09-25-19
05-07-20 02:47 PM - Post#2793112    

Hi
i have a 1947 business coupe that I am wanting to swap to an auto
if I buy the adapter for a 350 or 200R4 will I have to clearance any of the firewall or trans cover to make this fit
can you still use the E brake? I saw a guy put a T5 manual and he made the bracket work but a auto is a much bigger trans
also, the stock manual has ears on the bell housing that the auto will not have since the engine mounts are in the front will that be an issue?

has anyone done it? if so what trans support did you use that was bolted in

i know the starter is different
12v mod is needed as well as a drive shaft and rear end

any other issues that I may have missed? and pics would be nice

thanks

1947 Stylemaster coupe
1966 Olds 98 Convertible
1993.5 Toyota Supra


 


gundoc 
Silver Supporting Member
Posts: 8
gundoc
Age: 73
Loc: Central Otago, New Zealan...
Reg: 01-20-20
05-07-20 03:57 PM - Post#2793121    
    In response to The Flash

I am just in the process of doing this in a 46 Fleetmaster so I will be able to let you know as I go. The old engine and transmission is coming out today. I have already fitted an 8.5" 10 bolt rear. The spring pads needed to be cut off and moved outwards to suit the original spring spacing, and I had to drill new locating holes 1-3/4" forward on the pads to compensate for the offset original locating pins. I have yet to set the pinion angle and I will wait until the new engine and gearbox is fitted before I do that.



 
The Flash 
Newbie
Posts: 25

Reg: 09-25-19
05-08-20 06:55 AM - Post#2793166    
    In response to gundoc

cool thanks
i have a chance to get a 250 now with the nonintegrated intake.
do you know if it will have radiator clearance issues? do they make a short water pump?
i ordered a short pump for my 235 from chevy of the 40s along with other parts.
what I got was a torn box missing all parts and a scratche pulley cus they put that heavey fan adapter in the same box so I have to call them today pia if they would only have double boxed it

1947 Stylemaster coupe
1966 Olds 98 Convertible
1993.5 Toyota Supra


 
The Flash 
Newbie
Posts: 25

Reg: 09-25-19
05-08-20 07:39 AM - Post#2793170    
    In response to The Flash

they are sending me replacement parts so that good

1947 Stylemaster coupe
1966 Olds 98 Convertible
1993.5 Toyota Supra


 
gundoc 
Silver Supporting Member
Posts: 8
gundoc
Age: 73
Loc: Central Otago, New Zealan...
Reg: 01-20-20
05-08-20 03:53 PM - Post#2793213    
    In response to The Flash

My setup is a 250 with the TH350 trans. I can easily get around the extra length by mounting the radiator on the front edge of support frame and cutting the required clearance out of the front upper valance. The rear gearbox mount will be a 3/8" steel plate that extends rearwards about 4" to accept the rear rubber mount. This new plate will replace the existing mount on the cross member. When I get the dimensions dead right I will post some photos.



 
Broo102 
"5th Year" Silver Supporting Member
Posts: 617
Broo102
Loc: Huntington Beach, CA.
Reg: 09-30-14
05-08-20 07:26 PM - Post#2793225    
    In response to The Flash

I swapped my 47 fleetmaster vert. with a V8 & T-10 Trans, I had no special problems other than the throw out. I used a hydraulic yet., I havent figured out the E break, I have an X frame.

Thanks!
Bru
John 3:16
32 Chev. 5 Win. Sports Coupe
47 Chev. convertible in progress


 
gundoc 
Silver Supporting Member
Posts: 8
gundoc
Age: 73
Loc: Central Otago, New Zealan...
Reg: 01-20-20
05-10-20 02:41 AM - Post#2793360    
    In response to Broo102

I discovered today that I had to cut out the centre of the old crossmember and weld in endcaps to keep the road rubbish out. The mounting point of the TH350 is about 1" to the rear of the crossmember. I will make a new mount to bolt to the rear face of the crossmember and then there will be plenty of clearance if I need to drop the gearbox pan in the future. I have also located the correct position of the Chassis Engineering engine mounts but the engine block mounts will be offset to the rear by 3-3/4" to clear the right-hand drive steering box. This position will put the rear of the block about 1" ahead of the recess in the firewall, and mounting my radiator on the front edge of the support frame with give about 1-1/2" fan clearance.

Attachment: IMG_3446.JPG (786.83 KB) 5 View(s)




Attachment: IMG_3445.JPG (1.14 MB) 5 View(s)






 
Broo102 
"5th Year" Silver Supporting Member
Posts: 617
Broo102
Loc: Huntington Beach, CA.
Reg: 09-30-14
05-10-20 08:41 PM - Post#2793453    
    In response to gundoc

Instead of being that ambitious, I merely measured as close as I could the length needed from the muffin top motor mounts to the trans mounts already in the car. That way, whether I used a A/T trans or a stick, I could still use the original trans mount location. All I had to do is cut the rivets off.

Thanks!
Bru
John 3:16
32 Chev. 5 Win. Sports Coupe
47 Chev. convertible in progress


 
The Flash 
Newbie
Posts: 25

Reg: 09-25-19
05-11-20 05:19 AM - Post#2793481    
    In response to gundoc

Will the 250 clear the radiator or will you have to move it as well?

What I see is that my 235 with the stock pump is 33in long from the tip of the pump to the flat side of the block where the trans sits

The 250 measures the same length from the tip of the pump to the flat side of the block where the trans sits

People everywhere say to get a short pump for the 235 for it to clear the radiator.

What I found is that a 69 nova with AC WP is shorter than a non AC pump but I am having problems finding a pulley for that pump.
It has a step so the hole is bigger on that pulley, here is where I found this info

https://www.stevesnovasite.com/threads/difference-...

1947 Stylemaster coupe
1966 Olds 98 Convertible
1993.5 Toyota Supra


 
gundoc 
Silver Supporting Member
Posts: 8
gundoc
Age: 73
Loc: Central Otago, New Zealan...
Reg: 01-20-20
05-12-20 07:23 PM - Post#2793640    
    In response to The Flash

I have to move the radiator forward a couple of inches. I will just fit it to the front side of the support frame and modify the upper valance to suit.



 
The Flash 
Newbie
Posts: 25

Reg: 09-25-19
05-15-20 09:26 AM - Post#2793848    
    In response to gundoc

i just got the short 235 water pump
it makes the 235 1-1/2 shorter than with the stock pump
the 235 is 33in the 250 with the non-ac wp pump is 33in

1947 Stylemaster coupe
1966 Olds 98 Convertible
1993.5 Toyota Supra


 


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

274 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.016 seconds.   Total Queries: 11   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 03:50 PM
Top