330FT rebuild question
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Trailering
Joined: Mar 2023
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330FT rebuild question
I have a 78 f350 dump truck. It used to be a uhaul truck with the 330Ft motor. I'm leaning towards just rebuilding the 330 due to the fact I just put new exhaust manifolds on and built a full exhaust for this motor. It has the np435 transmission. Is there a cam or anything available to upgrade the performance of the this motor. I am not opposed to swapping motors if there is anything that would bolt to the transmission with the larger clutch. It currently uses the side motor mounts and not the timing cover mount like the larger trucks.
Fleet Mechanic
Joined: Jun 2009
Posts: 1,312
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From: San Antonio, TX
Try this thread. https://www.ford-trucks.com/forums/6...-fe-or-ft.html
I'd say start over with a 390 if you can find a cheap one, but I don't think it will work with your trans.
FE performance parts should work, but if it was mine, I'd just get it running good and save my $ for 390.
I'd say start over with a 390 if you can find a cheap one, but I don't think it will work with your trans.
FE performance parts should work, but if it was mine, I'd just get it running good and save my $ for 390.
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Trailering
Joined: Mar 2023
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I just found a complete 391ft in unknown condition for $100. I have always been a chevy guy and know nothing about fords but from what I have found lately there is not much available for the FT engines as far as performance parts. I probably will look for an fe based replacement. Thanks
Fleet Mechanic
Joined: Jun 2009
Posts: 1,312
Likes: 327
From: San Antonio, TX
I just found a complete 391ft in unknown condition for $100. I have always been a chevy guy and know nothing about fords but from what I have found lately there is not much available for the FT engines as far as performance parts. I probably will look for an fe based replacement. Thanks
Some good info here - https://www.ford-trucks.com/forums/6...d-a-391-a.html
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Trailering
Joined: Mar 2023
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For an occasional use truck it's getting me by. I'm just thinking long term something I can do for more power or low end torque. I think I will wait and look for an fe motor that I can get performance parts for if need be.
Fleet Mechanic
Joined: Jun 2009
Posts: 1,312
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From: San Antonio, TX
Keep your eyes peeled for an inexpensive 390, but they're not nearly as plentiful and cheap as they used to be.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
There are two different 330 2V FT engines: Medium Duty that uses the 352/360 crank and a Heavy Duty that used the 361 FT crank.
1973/78 F350 U-Hauls used the 330 2V Medium Duty engine.
1973/78 F350 U-Hauls used the 330 2V Medium Duty engine.
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Logistics Pro
Joined: Oct 2006
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From: East Central Ia
FT engines are meant to take a lot of abuse that regular FE engines are not meant for. Wide open throttle for miles on end no matter the temperature. A reason for low compression. If it's getting the job done for you I would stick with what you have.
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Trailering
Joined: Mar 2023
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Or does anyone know what parts are interchangeable between them. For $100 for the 391 I wouldn't care if I ended up not swapping them if any of the parts could be used for the 330 like the intake or manifolds or heads
Cargo Master
Joined: Jun 2014
Posts: 2,216
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From: Central Florida
If you decide to keep the 330 or switch to the 391 engine it's best to aim at a stock rebuild because there are very few aftermarket HP offerings. The regular FEs (360 and 390) on the other hand have a very healthy HP aftermarket because they are so similar to the 427/428s which are also FE engines.
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