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View Full Version : Differences in 460 390 360 etc. Diesel 6.9?


godtool
04-05-2011, 11:34 AM
I have a truck with a 460 on propane for sale but not exactly sure if its a 460 or 360-390? I heard something about thermostat in block or intake tells difference... Any websites that show good pics of all the big block engines? I also need a 2wd auto tranny for the 460 since I believe the pump went...

Alkso If I pull the 460 on propane out of this hot rodded 78 Ford 2wd will a 6.9 liter Disel engine bolt in? I have a standard set-upo already bolted to the 6.9. Also wondering what milage a disel 6.9 vs the 460 on propane if that is what it is....

Here is a pic of the 460 on propane...

godtool
04-05-2011, 11:36 AM
Also being a chev guy the bb 454 will bolt right in where a sb 350 sat, what works with forb bb's and sb's??

hillclimber
04-05-2011, 02:11 PM
my uncle's 87 has the 6.9 5sp running 33's and he was saying around 17mpg as a rough guess. as far as telling what kind of engine get the serial number and there should be some websites where you can search it.

Apathy
04-05-2011, 02:37 PM
a 352, 360, 390, 40?, 428 will have the valve cover going over part of the intake manifold.
as far as telling what they are.
You will not be able to unless you pull a head off. most of all the block markings are the same.
Most people will tell you "hey its a 390".. when 99% of the time its a 352 or 360.
390's were not common in trucks. IF it came stock in a truck.if its from teh 70's it will be a 360, if its from the 60's it will be a 352.
the 360 was made to get lower emissions.
a 360 has the same stroke as a 352, and the same bore as a 390.

the 460, was a different engine family, the 352, 360 ect. was called a FE block.

Apathy
04-05-2011, 02:38 PM
Also being a chev guy the bb 454 will bolt right in where a sb 350 sat, what works with forb bb's and sb's??


ford actaually never had a SB or a BB.

they were never anotated that way.

m j
04-05-2011, 06:25 PM
the pic is too small
kinda looks like someone swapped in a points distributor

make the pic bigger plz

Punk in Drublic
04-05-2011, 06:29 PM
they still have larger and smaller families of motors.332,352,360,390(gen 1). there is also gen 2 fes, 406, 428. and the side oiler were all fe's as well.


385 series came in 370, 429, and 460 cubes. if its a 78 and factory, good chance its a 460.

easieast way to tell, fe=5 valve cover bolts. 385 seiries (429-460) has 7.

but to tell what it really is youll have to run some numbers.

Punk in Drublic
04-05-2011, 06:42 PM
as fer the diesel, if ya got a parts truck prolly wont be a big deal. not sure on the differances in the feul tanks n lines. prolly have to fab some mounts n thatd be it far as i could imagine. not alot of wiring on a 6.9 is there?

fullsizebronco
04-05-2011, 07:19 PM
go with the diesel! you will double your mileage at least! i love mine and dont ever wanna go back to gas! lol i think the gas tanks are different tho when i was looking at tanks for mine i was not able to use a gas tank out of a gas truck it has something to do with the coating inside of the tank

FU Toolbag
04-05-2011, 10:26 PM
Looks like a 460 in the picks, or possibly a "M" motor, either way, same bell housing as a desiel, different motor mounts, but not a big problem. The fuel tank won't be a problem as having propane, odds are you don't have a gas tank to deal with. Don't use a used gas tank, spend the 150 and buy a new one. There will be gas residue in a used tank, regardless to the amount of times you clean it out.

It is going to be a shitload of work. Really consider why your doing this. Might just be easier to put the diesel truck on the road. I shouldn't be talking about doing more work on a truck then it's worth, but there it is for you.

fullsizebronco
04-06-2011, 06:25 PM
Looks like a 460 in the picks, or possibly a "M" motor, either way, same bell housing as a desiel, different motor mounts, but not a big problem. The fuel tank won't be a problem as having propane, odds are you don't have a gas tank to deal with. Don't use a used gas tank, spend the 150 and buy a new one. There will be gas residue in a used tank, regardless to the amount of times you clean it out.

It is going to be a shitload of work. Really consider why your doing this. Might just be easier to put the diesel truck on the road. I shouldn't be talking about doing more work on a truck then it's worth, but there it is for you.


the bell housings are the same? is that just the older trucks? i know my truck does not match a 460 tranny

85chevy
04-07-2011, 10:32 PM
are u going to keep it or sell it seems like a lot of work to just sell it but then again seems like a lot of work to keep it too[cheers]

godtool
04-09-2011, 10:35 AM
Just need to confirm its a 460. Header bolts (8) are in a straight line. Thermostat housing is part of intake. So those two facts point to 460?? I'm trying to sell whole truck...$1299 on craigslist...

patford
04-09-2011, 10:44 AM
Does intake go under vale cover ? fe block 390

godtool
04-09-2011, 10:59 AM
Darn, have to check that....

longhorn
04-09-2011, 05:30 PM
Just need to confirm its a 460. Header bolts (8) are in a straight line. Thermostat housing is part of intake. So those two facts point to 460?? I'm trying to sell whole truck...$1299 on craigslist...

Good luck i just sold a 78 in pretty decent shape on propane with a 460 , new dual exhaust , runs good they guy drove it home for $800 bucks.

godtool
04-12-2011, 07:08 AM
intake definetly just sits inbetween heads. Much like a sb chev 350. Valve covers do not overlap intake and if it did how much distance you talking about? Intake had line of lewtters that started with DVE I think...