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Old 08-03-2018, 10:46 PM   #1
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Repower Class A

im definatly gettin ahead of myself m dreaming here.... but has anyone replaced the efi 460 with a 514 stroker built for monster torque, or replaced with either a 7.3 powerstroke or 5.9 cummings? ( plans are to move to cali, but might take a couple year detour and finally cross spend 2 weeks in every state road trip off the bucket list)
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Old 08-04-2018, 08:30 AM   #2
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Have thought of it , but done nothing yet. Ford made a 534 truck engine that produced a lot of torque at low RPM . I heard it was a real gas hog. If your planning on a newer diesel , might be a good idea to buy a wrecked truck so you have the engine , trans and all the electronics , wiring , plumbing that goes with it . It would take some time , but sure can be done.
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Old 08-04-2018, 08:51 AM   #3
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If you’re headed to California, I suggest you become intimately familiar with the state’s emissions regulations pertaining to engine swaps or modifications. Your options will be very limited.
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Old 08-04-2018, 09:48 AM   #4
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we are headin to cali but keepin at least one of the houses here in mn so i can keep everything registered here lol (just about everything i bring out is gonna have collector plates that never need renewal)
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Old 08-04-2018, 09:57 AM   #5
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Old 08-04-2018, 10:29 PM   #6
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Quote:
Originally Posted by vogey View Post
im definatly gettin ahead of myself m dreaming here.... but has anyone replaced the efi 460 with a 514 stroker built for monster torque, or replaced with either a 7.3 powerstroke or 5.9 cummings? ( plans are to move to cali, but might take a couple year detour and finally cross spend 2 weeks in every state road trip off the bucket list)
Engine swaps are Great s long as you do your homework.
The Ford 460 block has quite large bores for its displacement. 514 is small for a strokers based on the 460. I wouldn't even call that a swap.
What you need to careful of is to not get carried away on the compression ratio when putting together a engine for a Class A Motorhome.
(This compression warning does Not apply to diesels.)

speaking of diesels There are really 2 kinds. one with and without Computers.
If you want to swap out a 6.2L GM or old 7.3L IDI Ford(navstar)diesel
The simplest replacement might just be a 12V (up to-97) 5.9L Cummins.

With ANY swap try to a get a transmission with the new engine.
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Old 08-05-2018, 03:15 AM   #7
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514 is definitely not anywere near the biggest it can go, but you can biuld one for almost the same cost as a stock rebuild. as for comp 9-1 would be max. i was thinking just a good stump pulling cam straight up (not 4 deg retarded like fact post 1970) get the f4 heads cleaned up and ported (nothing extreme. just gotta keep telling myself rv not mustang) and good headers. and switch to mass air the id be shooting for 350hp 600+lbs og torque

on the other hand, i do have a 6-71 supercharger that needs a home 8-1 comp 514 with 5lbs of boost at 1500 rpm would def get the rv up a hill. but doubt id ever get 9mpg (main reason for repower would be more torque, needing less peddle to get job done, getting better mpg) if i did jump in head first and do a swap a puter controlled diesel wouldnt scare me away. cant beat the reliability of the 12 valve cummins though. plenty of tuners aval that can get 700lbs of torque. and im guessin easy double digit mpg. this aerbus is easily nice enough to justify the work. i could spend 6-7 grand on it and still sell it for a profit from what im finding on others for sale. its got everything i coukd ever want except maybe a slide out or 2 (never had one, like the concept but dont like the idea of the problems they might run into)
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