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I had a 79 F250 givein to me it has the 460 init it keeps eating the ring gear init i put a 12" flywheel @ cluch in it and now the moter wont turn over took the bellhouse off and the moter turns put the bellhouseing back on and it wont turn can some one tell me my options with this problem is thanks
Are you saying the starter wont turn the motor or the motor won't turn. There has been some issues with clearance using the large clutch with a 400 bell housing.
I had a 79 F250 givein to me it has the 460 init it keeps eating the ring gear init i put a 12" flywheel @ cluch in it and now the moter wont turn over took the bellhouse off and the moter turns put the bellhouseing back on and it wont turn can some one tell me my options with this problem is thanks
Since the 460 was not available with a manual transmission until 1983, from what truck is the clutch/flywheel/bellhousing from?
Like I said there is some clearance issues using the bifgger clutch and it is binding on your bell housing. I have not run into this problem myself, so I don't know if you can do some clearancing or not. I belive there are 2 different pressure plates designs and one is smaller and will work. Maybe some one who has run into this will chime in.
What application is your flywheel for, 390 or 460.
I had hoped some of the guys that have swapped a 460 in and used a standard would jump in. One reason is I have a 460 that I need to stick in my 79. The first time the 460 was offered in a pickup with a standard was in 83, if you use a 460 built before 79 you have to use a 390 flywheel, because they apparently changed the balancing on them.
The 83 up bellhousings are setup for a hydraulic clutch, and I would like to stay with the manual, so unless I modify the 460 bell housing I need to use the 400 bellhousing.
There is 3/8 of an inch difference in the lenght of the two bellhousings, plus they are shaped different. I have seen where some has had to cut the pilot bearing down so that the input shaft will extend 3/8 of an inch into the crank, others have said they didn't run into this. I have also read that with the larger clutches you have to be careful wich pressure plate and throwout bearing you use because some are built wider on the tranny side and binds against, the bellhousing. this is the info I have gathered, I haven't swapped mine yet.
One reason is I have a 460 that I need to stick in my 79.
The first time the 460 was offered in a pickup with a standard was in 83.
If you use a 460 built before 79 you have to use a 390 flywheel, because they apparently changed the balancing on them.
The balance changed mid-model year 1979. Not in 1978.
1979: Since this was a running changeover, there is no serial number or production date break.
You have to go by the block casting number to determine which 460 it is. = This, and the following info is from the '73/79 Ford Light Truck Parts Catalog:
1973/78 and some 1979's: The block casting number is D1VE-6015-AB, -AB1, -AB2. This engine does not use a weighted spacer.
Some 1979's, 1980 and later: The block casting number is D9TE-6015-AB. This engine has a weighted spacer.
The harmonic balancer and flywheel are specific to each block casting number.
This applies to F100/350's & Econoline's only. Passenger Car's were not affected, because there were no 460's installed in any of them after 1978.
But...verify the block casting number, because: Who knows what the 460 might have come from.
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