Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1973 - 1979 F-100 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 11-09-2003, 02:06 AM
76 F250 4X4 76  F250 4X4 is offline
Senior User
 
Join Date: Oct 2003
Location: Gig Harbor, WA
Posts: 288
76  F250 4X4 is starting off with a positive reputation.
Pros and cons, 390 or 460 in '76 F250 4x4?

I'm going to change my '76 F250 with a 360 4-speed in it to a C6 and I can't decide whether to put a 390 or a 460 in it. NE opinions would be appreciated.
__________________
"Big Red", 1976 1/2, F250, 4 X 4, 360, C6, Ranger XLT, 315 75/R16s on MB Motorsports Crawlers, 119000 miles, zero damage, zero rust, father-in-law bought it new.
Reply With Quote
  #2 (permalink)  
Old 11-09-2003, 05:36 AM
1976 ranger's Avatar
1976 ranger 1976 ranger is offline
Senior User
 
Join Date: Mar 2003
Location: Garfield Hts, Ohio
Posts: 171
1976 ranger is starting off with a positive reputation.
Well theres a couple of things your going to have to do.
First is find a set of 351-400 m motor towers so you can drop the
460 in. I believe you can relocate your 360 mounts (but dont quote me on that).
Your going to need a c6 trans for a 460 also, take the internals from the 360 c6 and install them in the 460. This should allow you
to keep your currenty drive shaft lengths.
And dont forget about headers for the exhaust.
Now if you go the c6 route for the 390 you'll need the c6 out of
a early to mid 70,s highboy.

I currently have a 76 highboy with the 360, c6 , Np 205 case with dual Dana 60,s
I changed from a divorced tranfer case to a Connected one. I plan on putting a 390 in next year. But my plan is to do a 76 highboy chassis ground up with a 460. The 460 will be stroked , I m looking to get about 570 cubic inches out of it, this should really haul, it will get a Divorced transfer case with the c6 trans. It will also get lower gear ratios in the diffs to allow some low rpm highway cruising but still haul ***. But it all comes down to your budget and what you want to do.

David
Reply With Quote
  #3 (permalink)  
Old 11-09-2003, 08:11 AM
cj7nut cj7nut is offline
New User
 
Join Date: Nov 2003
Location: co
Posts: 3
cj7nut is starting off with a positive reputation.
460, the 390's have cam problem under heavy loads.
Reply With Quote
  #4 (permalink)  
Old 11-10-2003, 03:38 AM
highboy 74's Avatar
highboy 74 highboy 74 is offline
Senior User
 
Join Date: Nov 2003
Location: WA
Posts: 495
highboy 74 is gaining momentum as a positive member of FTE.
Smile

I currently have a 74 F-250 highboy with a 390 bored out to .30 over. It has an RV cam with an edelbrock intake and a holley 770 street avenger carb. I recently had it dynoed and it was making 188 HP with 260 Ft-Lb of torque at the rear wheels. It was estimated that it makes about 250 HP at the flywheel. I plan on installing headers and aluminum heads later on. In my opinion the 390 pulls real hard and with a little tweeking it can become a very impressive engine. The 460 on the other hand has the benefit of more cubic inches. I like the 390 because it bolts right in.
Reply With Quote
  #5 (permalink)  
Old 11-10-2003, 03:59 AM
Torque1st's Avatar
Torque1st Torque1st is offline
Posting Legend
 
Join Date: Sep 2001
Posts: 30,260
Torque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to beholdTorque1st is a splendid one to behold
The 460 will also suck more gas if you don't change the axle ratio.
__________________
"Beam me up Scotty. There's no intelligent life down here..."
Reply With Quote
  #6 (permalink)  
Old 11-10-2003, 09:33 AM
73Custom 73Custom is offline
Postmaster
 
Join Date: Apr 2000
Location: SD
Posts: 2,835
73Custom is starting off with a positive reputation.
That's tough to decide... I really like my 390, and in your case it would bolt right in, and the accessories would all fit. But knowing 'there's no replacement for displacement' and then reading the past post "wow, what mileage", I'd be leaning toward the 460. But that would involve swapping perches, brackets and exhaust...

I don't envy what you have to decide...

Marty
__________________
Cleverly Disguised as a Responsible Adult
Reply With Quote
  #7 (permalink)  
Old 11-14-2003, 01:44 PM
dzjammer dzjammer is offline
Senior User
 
Join Date: Dec 2000
Location: Nebraska Farm
Posts: 435
dzjammer is starting off with a positive reputation.
The 390 will be direct bolt-in replacement. so that would be easier if you were keeping the tranny. Since you want a C6 instead of manual, you still have a tranny search on your hands. 460 parts are more common since its still a current engine, the FE hasn't been put in a truck since 76. I have no complaints with my 390 other than the oil seepage out of almost every gasket on it. Seems to be a common problem with all FE's. For a total heart/lung transplant, your best bet would be to find a parts truck so you have everything you need for the different engine types. Theres a lot of extras that are overlooked in the planning stages of these swaps (believe me, I went from 300 I-6 4 spd to a 390 with C6). My advice is to find all your parts for each if you can and compare the costs to see if its worth it to you.
__________________
Dave,
1979 F150 4x4 390 w/C6, Edelbrock carb, cam, intake.
2000 F250 PSD, Kwik filter, AIH delete, DIY fuel pickup. Superchip, WW
1994 Explorer EB, with a twin still awaiting repair
Reply With Quote
  #8 (permalink)  
Old 11-14-2003, 01:53 PM
460f250's Avatar
460f250 460f250 is offline
Elder User
 
Join Date: Jul 2002
Location: BC, Canada
Posts: 590
460f250 is starting off with a positive reputation.
What do you expect to do with it? I've got a 460 in mine and you can't beat the torque for out and out hauling power, especially if you're in a hilly area. I haven't had a strong 390 so I can't comment on that.
__________________
Dwayne
'79 4x4 F250 Lariat
Member Alberta / British Columbia Chapter
Reply With Quote
  #9 (permalink)  
Old 11-14-2003, 05:22 PM
F150daniel F150daniel is offline
Posting Guru
 
Join Date: Mar 2003
Location: spartanburg, SC
Posts: 1,253
F150daniel is starting off with a positive reputation.
Cj7nut
could you explain this "cam problem under heavy loads"?
__________________
http://www.ford-trucks.com/user_gall...oid=23700&.jpg
815 Cubic Inch Pro Stock Ford Hemi
Reply With Quote
  #10 (permalink)  
Old 11-14-2003, 05:32 PM
Pentekno2 Pentekno2 is offline
Senior User
 
Join Date: Apr 2002
Location: KC Metro
Posts: 155
Pentekno2 is starting off with a positive reputation.
I'd also say that it depends on what application he is wanting, because yeah, I wou ld probably go with a 460 as well myself, but thats because I just do hauling and all that such. But he doesn't ever make it clear what he is building the truck for. For all we know he wants to make a mud runner out of it, in which case, putting in a 460 wouldn't be necessary at all, and the 390 would work perfectly fine.
So I can better answer the question as can all of you if he would be kind enough to reply, telling us what primary application he is going for.

Thanks
-Daniel
__________________
'78 Bronco Ranger - Rebuilding
Reply With Quote
  #11 (permalink)  
Old 11-14-2003, 05:47 PM
bassdude bassdude is offline
Elder User
 
Join Date: Sep 2003
Location: colorado
Posts: 762
bassdude is starting off with a positive reputation.
this is a great thread! i was going to rebuild my 360 to a 390. untill my buddy agreed to sell me the 460 c-6 combo out of his 71 lincoln. the 460 that year in that car is rated at 370HP! after a light rebuild it's going in! here ...hemi, hemi, hemi......
Reply With Quote
  #12 (permalink)  
Old 11-14-2003, 06:49 PM
76 F250 4X4 76  F250 4X4 is offline
Senior User
 
Join Date: Oct 2003
Location: Gig Harbor, WA
Posts: 288
76  F250 4X4 is starting off with a positive reputation.
Daily driver

My truck will never see mud or be offroad.. I just like hotroding my stuff.
__________________
"Big Red", 1976 1/2, F250, 4 X 4, 360, C6, Ranger XLT, 315 75/R16s on MB Motorsports Crawlers, 119000 miles, zero damage, zero rust, father-in-law bought it new.
Reply With Quote
  #13 (permalink)  
Old 11-17-2003, 10:10 PM
nzirbel nzirbel is offline
Senior User
 
Join Date: Sep 2003
Posts: 242
nzirbel has a good reputation on FTE.nzirbel has a good reputation on FTE.
I have seen it done both ways. My brother went from a 390 to 460 in his 76, I went 360 to 390. I personally love the 390 to death. The 460 seems more like a pulling grunt motor. My 390 is more the screaming fun-to-drive motor. As far as pulling power, that has as much to do with gear/tire combo as engine.
__________________
http://www.ford-trucks.com/user_gall...id=173674&.jpg

Chicks dig scars.
Reply With Quote
Old 11-17-2003, 10:10 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1973 - 1979 F-100 & Larger F-Series Trucks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 06:35 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup