Transmissions - V8 vs. 6
#1
Transmissions - V8 vs. 6
Will a tranny from a flathead six bolt up to a flathead V8. This drivetrain I am being offered (for free) is 53 flathead six. I have just purchased a 49 F2 (no engine). The F2 has the rest of the drivetrain. I am interested in the 53 drive train as spares for the 49. The free drivetrain is near Seattle and I am in a suburb of Houston so I want to make certain it will be of some value to me before I act on it. Any help would be appreciated. The 49 F2 has a floor shift and I believe it is a three speed. The 53 I believe is a four speed (obviously also a floor shift) and is also out of an F2.
#2
#3
#5
#6
#7
Originally Posted by 46fordtruck
Since nobody answered yet. A 215 is the overhead valve 6, not the flathead 6, they were 226. I know the flathead 6 trans will not bolt to a flathead V8, not sure of the trans from the 215.
Rod
Last edited by 51ford fan; 05-18-2005 at 11:07 AM.
Trending Topics
#8
Because I had a '51 H series flathead 6 in my '46, which was bolted right up to the original '46 G series transmission (VIN is factory stamped on bellhousing) and I have 2 '46 flathead V8's, as well as a '49-'53 flathead V8, and have seen that they do have a different mounting area. The flathead V8 is a circle shape, while the 6 cylinder has a bump in the circle, it's not a perfect circle. I am pulling the flathead 6 and trans and replacing it with a '46 V8 and '48 F1 heavy duty 3 speed, had the stock 6 cylinder trans been the same I would have used it.
#9
Originally Posted by 46fordtruck
Because I had a '51 H series flathead 6 in my '46, which was bolted right up to the original '46 G series transmission (VIN is factory stamped on bellhousing) and I have 2 '46 flathead V8's, as well as a '49-'53 flathead V8, and have seen that they do have a different mounting area. The flathead V8 is a circle shape, while the 6 cylinder has a bump in the circle, it's not a perfect circle. I am pulling the flathead 6 and trans and replacing it with a '46 V8 and '48 F1 heavy duty 3 speed, had the stock 6 cylinder trans been the same I would have used it.
#10
#11
Gary, it sounds like you've got the scoop on these. Since I've never seen the 6 cyl setup, I have a couple of questions if you don't mind.
I haven't seen anything in the shop manual that specifies a different tranny for the V8 vs. the 6's. Am I right to believe the difference is in the bell housing/half-bell area?
The V8 set up uses the following variables.
The 59 series V8 has a cast half-bell as part of the block. The 8BA uses a detachable half-bell or ring. This is the easy part.
The light duty 3 spd trans has a non-removable half-bell. The HD 3 spd uses a detachable half-bell.
I guess my questions are: where does the 6 cylinder fit in this mess? Are the G and H series different? Do they have a cast in half-bell or a separate ring? Where exactly is the bump you described?
Thanks for your input. I'm not describing this very well - hope you can make sense of this mush.
Tim
I haven't seen anything in the shop manual that specifies a different tranny for the V8 vs. the 6's. Am I right to believe the difference is in the bell housing/half-bell area?
The V8 set up uses the following variables.
The 59 series V8 has a cast half-bell as part of the block. The 8BA uses a detachable half-bell or ring. This is the easy part.
The light duty 3 spd trans has a non-removable half-bell. The HD 3 spd uses a detachable half-bell.
I guess my questions are: where does the 6 cylinder fit in this mess? Are the G and H series different? Do they have a cast in half-bell or a separate ring? Where exactly is the bump you described?
Thanks for your input. I'm not describing this very well - hope you can make sense of this mush.
Tim
#12
Yes, the HD 3 spd has a sep bell, while the light duty 3 spd has a cast in bell. The bell that is on the engine is the original G series, had to use it because the H series had a passenger car bellhousing, needed it to adapt to the G series trans. The bell on the G is a half bell, not a ring. If you look at the Ford Chassis Parts Catalog (aka Green Bible) you'll find that there is a different trans listing for a 6 and V8. The 6 used case with prefix 1GC and the V8 used a case with prefix 78. These are 3 spd transmissions. Of course, the case on the 6 cylinder does use a cast in bellhousing, integral with the whole trans. And the bump is where the back of the starter gear is, the trans bolt pattern goes around the starter.
#13
#14
The G has a removable bellhousing, but that bellhousing has the same engine to bell pattern as the H. But yes, a G series has a different bolt pattern, you need a G series bell to adapt to an H series engine. Sorry I wasn't real clear in specifying everthing. Thinking back now, the trans from an 8 may fit a 6...I never tried since I immediatly got rid of the '51 passenger trans I had.
Last edited by 46fordtruck; 05-26-2005 at 11:28 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Fran loves Fords
1948 - 1956 F1, F100 & Larger F-Series Trucks
9
10-01-2015 07:29 PM
kcode
1948 - 1956 F1, F100 & Larger F-Series Trucks
1
12-02-2013 10:23 PM
3rdshiftDiscretion
1948 - 1956 F1, F100 & Larger F-Series Trucks
16
06-18-2011 05:08 PM