360 OR 390
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From: Phoenix
360 OR 390
I have a 390 that overheated, and needs to be re-built. Looking at the prices for doing this around here is roughly $1700 if I want a shop to do it. So I'm looking at all my options.
Since I don't know a whole lot about these Ford trucks, will a 360 bolt on to the existing tranny, or do I need to change that out as well if I get a 360.
Same thing for a 302. I don't think they will bolt up, but not sure.
On top of that whats a rough cost estimate?
Since I don't know a whole lot about these Ford trucks, will a 360 bolt on to the existing tranny, or do I need to change that out as well if I get a 360.
Same thing for a 302. I don't think they will bolt up, but not sure.
On top of that whats a rough cost estimate?
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360 and 390 are the same block, so your trans/bell etc will all bolt up.
302 will bolt up to the trans, but you need a 302 stick bell, clutch etc. Plus different mounts, cooling, all the other business as it's different from the FE motors.
If you are not particular about power and gas mileage, the 360 is the probably the cheapest way to go. Millions served, the main issue would be worn out heads and valve seals.
IMO I wouldn't install anything without going through it. Easy to say when it's not my money I know, but why do all the labor to find out you have a doggy smoker?
FWIW, I'd rebuild the 390 with 9:1 cr and a decent cam. ymmv.
302 will bolt up to the trans, but you need a 302 stick bell, clutch etc. Plus different mounts, cooling, all the other business as it's different from the FE motors.
If you are not particular about power and gas mileage, the 360 is the probably the cheapest way to go. Millions served, the main issue would be worn out heads and valve seals.
IMO I wouldn't install anything without going through it. Easy to say when it's not my money I know, but why do all the labor to find out you have a doggy smoker?
FWIW, I'd rebuild the 390 with 9:1 cr and a decent cam. ymmv.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
I have a 390 that overheated, and needs to be re-built. Looking at the prices for doing this around here is roughly $1700 if I want a shop to do it. So I'm looking at all my options.
Since I don't know a whole lot about these Ford trucks, will a 360 bolt on to the existing tranny, or do I need to change that out as well if I get a 360.
Same thing for a 302. I don't think they will bolt up, but not sure.
On top of that whats a rough cost estimate?
Since I don't know a whole lot about these Ford trucks, will a 360 bolt on to the existing tranny, or do I need to change that out as well if I get a 360.
Same thing for a 302. I don't think they will bolt up, but not sure.
On top of that whats a rough cost estimate?
I'd say $1700.00 is not a bad rebuild price.
To ad to 85e150six4mtod, if it is a str. drv. you can do this if it is a C6 auto no.
John
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Joined: Apr 2011
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From: Phoenix
Thanks everyone, your input is greatly appreciated! I'm going to look at finding a 360 or 390 around here and see what's the going price. I did find a rebuilit 360 in Payson(if I remember correctly) for $650. Supposedly rebuilt, etc., but you never know until you inspect it carefully!
Also, what year 360/390s will fit? 67-85?
Also, what year 360/390s will fit? 67-85?
Fleet Mechanic
Joined: Nov 2010
Posts: 1,501
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From: Axtell, TX
65-76 (although I think Uhauls still used them until 83) will be a direct swap. I would try to end up with a 390 when all is said and done IMO. Whether that be by rebuilding your current 390, finding a good running 390, or by swapping that crank and rods into a 360. You'll get the same or slightly better mpg and better power with the 390.
I agree with 85e150six4mtod about going through it and inspecting it, and that the 360 while not the best will most likely be the cheapest route.
How much is the rebuild kit you've priced? and how much is shop labor in that $1700 quote?
I agree with 85e150six4mtod about going through it and inspecting it, and that the 360 while not the best will most likely be the cheapest route.
How much is the rebuild kit you've priced? and how much is shop labor in that $1700 quote?
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Junior User
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From: Phoenix
65-76 (although I think Uhauls still used them until 83) will be a direct swap. I would try to end up with a 390 when all is said and done IMO. Whether that be by rebuilding your current 390, finding a good running 390, or by swapping that crank and rods into a 360. You'll get the same or slightly better mpg and better power with the 390.
I agree with 85e150six4mtod about going through it and inspecting it, and that the 360 while not the best will most likely be the cheapest route.
How much is the rebuild kit you've priced? and how much is shop labor in that $1700 quote?
I agree with 85e150six4mtod about going through it and inspecting it, and that the 360 while not the best will most likely be the cheapest route.
How much is the rebuild kit you've priced? and how much is shop labor in that $1700 quote?
It seems to me that re-building it myself might just be the way to go.
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swear by mine! However, planning on going to a 390 soon for the added power. But am pushing 400k so it's expected to be a little tired.. just a little 
Good luck, which ever way you go.
Good luck, which ever way you go.
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