352 Possible????

[breny89]

Is it possible to put a 352 engine in a 1979 bronco that currently has a 351??

 

[Yardape]

I think why would be the appropriate answer to that. Are you asking for a direct bolt in? The 352 is very simular to a 390. That is a different engine family all together

 

[Mike @ Tracy]

The 352 does not fit as a bolt in, The 352 has the same tranny bolt pattern as the 360 and 390. You would have to change Bellhousing, flywheel, And probably clutch. You would also have to use the exhaust manifolds off the 352. Thugh most of the other stuff should interchange

 

[bronco silly]

I just completed a swap like that in my F-250 and the frame mounts have to be changed also.

 

[Yardape]

You put a 352 in your F-250?

 

[Mike @ Tracy]

??? My 86 bronc with a straight 6 has the same frame mount as my 68 f-100 with a 360 had. The only difference I'm seeing is from the top of the frame mount to the block. In fact I put a 352 into a 74 f-100 4x4 that had a 390 in it and never changed a mount. Maybe the f-250 is different...............?????

 

[Yardape]

The 390 is the same as the 352. In fact the 390 heads have 352 markings on them

 

[Mike @ Tracy]

I didn't know that. But as far as motor mounts in F-series trucks ( I'm assuming the Bronco to be the same) I have never had an instance where I had to change the cradle. Even from small block to big block. Even in my 79 Buick Regal, I went from a 231 turbo to a 403 and never changed the cradle, just the mount itself. Just for general info all the buick took was swapping the R & L mounts and inverting them. Thing bolted right up. 403 turbo 400 trans and 271 rear gears. That car was FUN, 70 mph @1200 rpm till the Sheriff took it :glare: :glare:

 

[Johnny Reb]

I didn't know that. But as far as motor mounts in F-series trucks ( I'm assuming the Bronco to be the same) I have never had an instance where I had to change the cradle. Even from small block to big block. Even in my 79 Buick Regal, I went from a 231 turbo to a 403 and never changed the cradle, just the mount itself. Just for general info all the buick took was swapping the R & L mounts and inverting them. Thing bolted right up. 403 turbo 400 trans and 271 rear gears. That car was FUN, 70 mph @1200 rpm till the Sheriff took it :glare: :glare:

Ok ,I put a 390 in my 78 bronco and this is what I had to do. I have a standard transmisson in it. I had to have the 390 bellhouseing,the clutch rod assembly (from the frame to the motor block)The frame mounts had to have a hole drilled into them to align the motor in. I put in a new clutch ,pilot bearing,pressure plate and throw out bearing.I,m sorry ,but I didn,t even compare them to the 351. I put in a 4 row radiator -to be sure the 390 would not over heat. If you put in 390 GT heads(you should have headers) for they do breath and if the motor is a 390 high performance and you don,t. It will burn up soon. I sold a friend a 390 hi po and he put in stock exhaust and burnt the the motor up. We tried to tell him,but he wouldn,t listen.-so its a easy bolt in, For me to get the correct hole marks on the frame mount-I had to let the motor (with motor mounts on) down onto the frame mount to be able to mark the place for holes. I still have to put on hearder puipes,but those will probably have to be made. I put in a new 78 -4 row radiator and the hose are on the correct sides.

 

[Johnny Reb]

I didn't know that. But as far as motor mounts in F-series trucks ( I'm assuming the Bronco to be the same) I have never had an instance where I had to change the cradle. Even from small block to big block. Even in my 79 Buick Regal, I went from a 231 turbo to a 403 and never changed the cradle, just the mount itself. Just for general info all the buick took was swapping the R & L mounts and inverting them. Thing bolted right up. 403 turbo 400 trans and 271 rear gears. That car was FUN, 70 mph @1200 rpm till the Sheriff took it :glare: :glare:

Ok ,I put a 390 in my 78 bronco and this is what I had to do. I have a standard transmisson in it. I had to have the 390 bellhouseing,the clutch rod assembly (from the frame to the motor block)The frame mounts had to have a hole drilled into them to align the motor in. I put in a new clutch ,pilot bearing,pressure plate and throw out bearing.I,m sorry ,but I didn,t even compare them to the 351. I put in a 4 row radiator -to be sure the 390 would not over heat. If you put in 390 GT heads(you should have headers) for they do breath and if the motor is a 390 high performance and you don,t. It will burn up soon. I sold a friend a 390 hi po and he put in stock exhaust and burnt the the motor up. We tried to tell him,but he wouldn,t listen.-so its a easy bolt in, For me to get the correct hole marks on the frame mount-I had to let the motor (with motor mounts on) down onto the frame mount to be able to mark the place for holes. I still have to put on hearder puipes,but those will probably have to be made. I put in a new 78 -4 row radiator and the hose are on the correct sides. Oh, the engine came out of a 74 Ford king Can and the early 352 motor mount on motors in the late 50,s to early 60,s -to mid sixties( the block pattern are different--if I am not mistaken-they have 2 bolts into the block instead of the later has 3) but they will bolt up-with one less bolt.-I went through that -seems hard to believe ,but it is.Good luck

 

[Johnny Reb]

Ok ,I put a 390 in my 78 bronco and this is what I had to do. I have a standard transmisson in it. I had to have the 390 bellhouseing,the clutch rod assembly (from the frame to the motor block)The frame mounts had to have a hole drilled into them to align the motor in. I put in a new clutch ,pilot bearing,pressure plate and throw out bearing.I,m sorry ,but I didn,t even compare them to the 351. I put in a 4 row radiator -to be sure the 390 would not over heat. If you put in 390 GT heads(you should have headers) for they do breath and if the motor is a 390 high performance and you don,t. It will burn up soon. I sold a friend a 390 hi po and he put in stock exhaust and burnt the the motor up. We tried to tell him,but he wouldn,t listen.-so its a easy bolt in, For me to get the correct hole marks on the frame mount-I had to let the motor (with motor mounts on) down onto the frame mount to be able to mark the place for holes. I still have to put on hearder puipes,but those will probably have to be made. I put in a new 78 -4 row radiator and the hose are on the correct sides. Oh, the engine came out of a 74 Ford king Can and the early 352 motor mount on motors in the late 50,s to early 60,s -to mid sixties( the block pattern are different--if I am not mistaken-they have 2 bolts into the block instead of the later has 3) but they will bolt up-with one less bolt.-I went through that -seems hard to believe ,but it is.Good luck-and it had I 8 bolt hole wheels