390 engine,460 mounts
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390 engine,460 mounts
Heres a question for y'all. I have a 78 f-100 that im putting on a 77 highboy frame and its set up for a 460. My question is will i have to change motor mounts and also will it bolt to the bell housing without an adapter. While im at it let me ask are all 1977 F-250's highboys?
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390 engine,460 mounts
There is information missing in this post.
Where does the 390 come in?
The 390 & 460 have different bolt patterns for transmissions.
390 = FE
460 = 385 series
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Where does the 390 come in?
The 390 & 460 have different bolt patterns for transmissions.
390 = FE
460 = 385 series
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390 engine,460 mounts
the 77 came with either a 351m or 400----the 460 , 429 , 351m , and 400 all have the same bolt pattern on the back of the block so the bell on your 460 should boltup with no problem and I think your motor mounts will boltup to the towers that came with your hiboy--i stand to be corrected though on the motor mounts.......fd 
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From: DOG BOX
390 engine,460 mounts
how about this???
I am thinking of putting a 429 into a '71 highboy, can I use 351m-400 frame mounts out of a '78 f-250 4x4 and rubber mounts from a '80's 460???? I already have a bellhousing from a 460 and a np435.thanx john
I am thinking of putting a 429 into a '71 highboy, can I use 351m-400 frame mounts out of a '78 f-250 4x4 and rubber mounts from a '80's 460???? I already have a bellhousing from a 460 and a np435.thanx john
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390 engine,460 mounts
NO!
Please excuse the all caps.
This is the way this article was written.
460 SWAP
1977-79 F100/150 4 WD WITH A 351M/400 ENGINE AND C-6 TRANSMISSION.
IS THE TRANSMISSION GOING TO BOLT UP TO THE BIGGER ENGINE ? YES
WILL I HAVE TO CHANGE THE EXHAUST ? YES
WILL I HAVE TO GET DIFFERENT MOTOR MOUNTS FOR THE 460? YES
WILL I HAVE TO CHANGE THE MOTOR MOUNT TOWERS? NO
WILL THE POWER STEERING BRACKETS FROM THE 351M WORK ON THE 460 ? NO
WILL THE ALTERNATOR BRACKETS FROM THE 351M WORK ON THE 460 ? NO
DID FORD EVER OFFER A 4 WD TRUCK WITH A 460 ENGINE ? NO ONLY IN THE 2 WD MODELS
WILL THE FLYWHEEL FROM THE 351M/400 INTERCHANGE FROM EITHER AUTO TRANS. OR MANUAL TRANS? NO THERE IS A DIFFERENCE IN THE WAY THE 460 FLYWHEEL ARE BALANCED. EXAMPLE SOME OF THE 429/460 IN THE EARLY 70'S WERE EXTERNALLY BALANCED WHICH REQUIRED A WEIGHTED DAMPNER SPACER. WHEN YOU BUILD YOUR ENGINE MAKE SURE YOU KNOW HOW IT IS BALANCED BECAUSE IF YOU PUT THE WRONG SPACER OR FLYWHEEL YOU WILL GET ONE HELL OF A VIBRATION WHEN YOU START THE ENGINE, AND PRETTY QUICK YOU WILL POUND THE MAIN BEARS RIGHT OUT.
460 SWAP
1973-77 F-250 4 WD WITH 360-390 ENGINE AND C-6 TRANSMISSION
WILL THE 460 BOLT UP TO THE C-6 FROM 360 ENGINE? NO, DIFFERENT BOLT PATTERN
WILL I HAVE TO CHANGE THE EXHAUST? YES
WILL I HAVE TO GET MOTOR MOUNTS FOR THE 460? YES
WILL I HAVE CHANGE THE MOTOR MOUNT TOWERS ON THE FRAME ? YES TOWERS FOR THE 360 SET TO HIGH FOR THE 460 BLOCK.
WILL THE ALTERNATOR OR POWER STEERING BRACKETS FROM THE 360 ENGINE FIT THE 460? NO
FORD DID NOT OFFER THE 460 AS A OPTION IN THE F-250 4 WD TRUCKS FROM 73-79.
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Please excuse the all caps.
This is the way this article was written.
460 SWAP
1977-79 F100/150 4 WD WITH A 351M/400 ENGINE AND C-6 TRANSMISSION.
IS THE TRANSMISSION GOING TO BOLT UP TO THE BIGGER ENGINE ? YES
WILL I HAVE TO CHANGE THE EXHAUST ? YES
WILL I HAVE TO GET DIFFERENT MOTOR MOUNTS FOR THE 460? YES
WILL I HAVE TO CHANGE THE MOTOR MOUNT TOWERS? NO
WILL THE POWER STEERING BRACKETS FROM THE 351M WORK ON THE 460 ? NO
WILL THE ALTERNATOR BRACKETS FROM THE 351M WORK ON THE 460 ? NO
DID FORD EVER OFFER A 4 WD TRUCK WITH A 460 ENGINE ? NO ONLY IN THE 2 WD MODELS
WILL THE FLYWHEEL FROM THE 351M/400 INTERCHANGE FROM EITHER AUTO TRANS. OR MANUAL TRANS? NO THERE IS A DIFFERENCE IN THE WAY THE 460 FLYWHEEL ARE BALANCED. EXAMPLE SOME OF THE 429/460 IN THE EARLY 70'S WERE EXTERNALLY BALANCED WHICH REQUIRED A WEIGHTED DAMPNER SPACER. WHEN YOU BUILD YOUR ENGINE MAKE SURE YOU KNOW HOW IT IS BALANCED BECAUSE IF YOU PUT THE WRONG SPACER OR FLYWHEEL YOU WILL GET ONE HELL OF A VIBRATION WHEN YOU START THE ENGINE, AND PRETTY QUICK YOU WILL POUND THE MAIN BEARS RIGHT OUT.
460 SWAP
1973-77 F-250 4 WD WITH 360-390 ENGINE AND C-6 TRANSMISSION
WILL THE 460 BOLT UP TO THE C-6 FROM 360 ENGINE? NO, DIFFERENT BOLT PATTERN
WILL I HAVE TO CHANGE THE EXHAUST? YES
WILL I HAVE TO GET MOTOR MOUNTS FOR THE 460? YES
WILL I HAVE CHANGE THE MOTOR MOUNT TOWERS ON THE FRAME ? YES TOWERS FOR THE 360 SET TO HIGH FOR THE 460 BLOCK.
WILL THE ALTERNATOR OR POWER STEERING BRACKETS FROM THE 360 ENGINE FIT THE 460? NO
FORD DID NOT OFFER THE 460 AS A OPTION IN THE F-250 4 WD TRUCKS FROM 73-79.
[font color=red]Dennis
FTE Assistant Administrator
[/font]
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