New to me '77 Sport

[Aztec77Bronco]

So I'm thinking of possibly going a different direction on the bronco. Has anyone been around the 4BT Cummins swapped EB's? I found what I want with the P pump for $4k I'm thinking about.
http://www.ebay.com/itm/CUMMINS-4BT-3-9 ... 1y&vxp=mtr
In my research they are a 5.9L Cummins minus two pistons. They are said to be reliable, but noisy. I have a diesel pickup, so not sure how much worse it will be. The 130 HP has about 327 ft lb of torque according to 4BTSwaps.com. Is the 4R70W strong enough to handle the torque & HP in an EB application? I like the "Hook up 2 wires to make it run" feature & well.......it's diesel!!!!

Also the motor weighs around 700 lbs where a fully dressed 351W EFI (My other direction) is probably around 550-600 lbs. w/ 210 hp & 315 ft/lb

I'm thinking less wiring, already injected, has serpentine are BIG plus, but I will have to do a body lift or add a hood scoop to make it fit.

Any thoughts? Pros, Cons & personal experiences would be appreciated.

[D&D72]

Kinder's BSD build should answer most of your questions. viewtopic.php?f=3&t=5186

[Aztec77Bronco]

I'll dig into it. Thanks!

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[landshark]

It's loud. Very loud. Headset loud. But don't let that stop you!

[Aztec77Bronco]

It's loud. Very loud. Headset loud. But don't let that stop you!

Are we talking Cummins strict pipe loud or modified tractor pull loud?

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[Aztec77Bronco]

It's loud. Very loud. Headset loud. But don't let that stop you!

Are we talking Cummins straight pipe loud or modified tractor pull loud?

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[hockeydad4-22]

It's loud. Very loud. Headset loud. But don't let that stop you!

Are we talking Cummins straight pipe loud or modified tractor pull loud?

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Sent from my SAMSUNG-SM-G870A using Tapatalk

We are talking Cummins straight pipe loud. Which is plenty loud when you are riding inside an enclosed metal cinder block

[Eck]

[quote="landshark"]It's loud. Very loud. Headset loud. But don't let that stop you!

Are we talking Cummins straight pipe loud or modified tractor pull loud?

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Sent from my SAMSUNG-SM-G870A using Tapatalk

We are talking Cummins straight pipe loud. Which is plenty loud when you are riding inside an enclosed metal cinder block[/quote]

When you have ear plugs sitting in your drink holder, I consider that loud! Right, Kinder?

[Jesus_man]

I do believe it's a little louder than your average 1st gen 6BT. But there is a lot of sound deadening in those trucks, that you may not have in your bronco. I've been around one in Denver and LOVED it! I never got a ride, but I was near it plenty when it was running. I don't believe he's been active in the Bronco community for a long time, but search cb.com for user Miley and you might dig up some of his info.

I remember him backing his bronco into his driveway at idle. I think he was on 35's. Anyway, front tires caught on the curb and instead of the engine dying, the rear tires just started spinning and barking on the concrete! That's torque baby!

I do believe that the 4BT is the easiest to drop in, but I also believe there are other diesel engines out there that might be less noisy.

[Justin]

I can hear Kirk's coming a couple of blocks away. It's loud (but awesome). I'm holding out for a VM Motori out of the new grand Cherokees or the new Cummins from the Titans to start hitting yards. Ecoboost is another worthy option.

[Kinder]

I suppose I should chime in here eventually. Yes it's loud, but mine is louder in the cab then it should be, I have zero sound dampening and I still have holes in my firewall and front floorboards. I plan to address this now that the weather is getting warmer by adding sound dampening products to all of the front sheet metal including the doors. That's it for the down side to this swap for me. The upside is great gas milage (20+ no matter how it's loaded), simple engine management with mechanical injection, very reliable since I've made no mods (it's been my DD since Willem took my truck to school in Aug of last year).

Be very careful about sourcing an engine from anywhere you can't lay your hands on. Most of the engines on the market now are from the Hostess bankruptcy and I'll guess are pretty high mileage. Anything that attaches to the motor that isn't included in the sale will run you a bit of money as most of the bolts, brackets and adapters are Cummins only parts.

I don't believe a 4r70w will survive behind one of these engines, you'd be better off with a auto that was designed to live behind it, and has all the correct hardware to make the connection. There are multiple transmission adapter sets; SAE (2&3), Dodge, Chevy, Ford and even Eaton. But I've never seen a Ford small block automatic setup behind this motor, so you'd have to fab the stuff that was never created.

I love my setup, I'd do it all over again in a heartbeat.

[Aztec77Bronco]

So my questions are.......is there a way to quiet it down a little. The new 6.7L powerstroke makes the duramax seem loud. & where do you find a good motor?

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[Jesus_man]

Dynomat or other similar products on the interior, and there are some spray-on products for the underside as well.

While outside of it, you won't be able to hold a conversation near a 4BT without shouting. This can be frustrating if you wheel hard enough to require a spotter.

But it's still an awesome diesel!