3208 cat to 6bta or 6cta cummins?

Badlatitude

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What would be involved mechanically in repowering from a 320hp 3208 to a 370hp 6bta or 350-400hp 6cta? New gear, prop and change the motor mounts?

Does anyone have the external dimensions of theese engines?
 
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captainlarry84

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If the 3208 fits so will those Cummins Motors. They are all built on 18.5 center mounts. The big thing is the selection of the gear. If you go with the ZF 220a your swap will be fairly straight forward.
 

Badlatitude

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If the 3208 fits so will those Cummins Motors. They are all built on 18.5 center mounts. The big thing is the selection of the gear. If you go with the ZF 220a your swap will be fairly straight forward.

Thanks larry. I just see so many boats with UGLY 3208s. I have one specific old girl in mind that is relativly local and I've always had a fondness for. For the right price a repower is a no brainer. Gonna try and get my paws on her If I can. Then ill be asking about props!
 

tunaorlater

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How about the height? I would think a v8 would be lower then a straight 6? You may have Clearance issues.
 

Frank Grimes

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What would be involved mechanically in repowering from a 320hp 3208 to a 370hp 6bta or 350-400hp 6cta? New gear, prop and change the motor mounts?

Does anyone have the external dimensions of theese engines?

It's all on boatdiesel. The B block Cummins is significantly smaller than the 3208 and weighs about 600 lbs less dry. The C is shorter by a couple of inches but weighs roughly the same dry.
 

googinhater

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Why not go with a rebuilt 3208 the 435 HP one and call it good for 10/12,000 HR that's what I would do and there's non of the new computer shit to deal with
 

petrel

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Not necessarily. They can last a long time if you use the detuning lever- the one w/ the red knob.
 

jerseysportfisher

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Not necessarily. They can last a long time if you use the detuning lever- the one w/ the red knob.

true, but most don't seem to utilize that mentality. They usually run'm hard because they want speed. I feel if you want over 400hp, there are much better options , and less sensitive engines at that level.
 
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MBILL

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I had a 450HP 3208TA in my boat for 12 years without any internal problems.
It was running like a top when I took it out. I replaced it with a modern Cummins that has a vastly different (and more usable) power curve.
I would only go with 3208's today if you don't intend to run hard.
 

captainlarry84

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Why not go with a rebuilt 3208 the 435 HP one and call it good for 10/12,000 HR that's what I would do and there's non of the new computer shit to deal with

Most 3208 320 HPs had TD 506 gears, If you jump up to 375 to 450 CAT 3208 power they recommend the TD 507 gear. Good luck finding one of them. If you went ZF it would be there ZF280a gear a lot more than a ZF 220A gear.
 
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