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It is currently Mon Nov 25, 2024 3:42 pm
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Aztec77Bronco
Official CCB Member
Joined: Thu Jul 05, 2012 11:54 am Posts: 119 Images: 0 Location: Just south of Durango
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Re: New to me '77 Sport
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.
_________________ '77 Sport, 302 HO on it's way to a resurrection! '03 Mercedes CLK 320 Cabriolet (W208 body) '13 Ford F350 Lariat Crew Cab 4wd Power Stroke
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Tue Mar 15, 2016 3:42 pm |
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D&D72
Official CCB Member
Joined: Sun Sep 11, 2011 10:49 pm Posts: 988 Location: Henderson, Co. Grand Lake, Co
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Re: New to me '77 Sport
Kinder's BSD build should answer most of your questions. viewtopic.php?f=3&t=5186
_________________ That guy John.... whatta Jerk.
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Tue Mar 15, 2016 4:23 pm |
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Aztec77Bronco
Official CCB Member
Joined: Thu Jul 05, 2012 11:54 am Posts: 119 Images: 0 Location: Just south of Durango
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Re: New to me '77 Sport
I'll dig into it. Thanks!
Sent from my SAMSUNG-SM-G870A using Tapatalk
_________________ '77 Sport, 302 HO on it's way to a resurrection! '03 Mercedes CLK 320 Cabriolet (W208 body) '13 Ford F350 Lariat Crew Cab 4wd Power Stroke
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Tue Mar 15, 2016 5:12 pm |
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landshark
Official CCB Member
Joined: Fri Oct 14, 2011 12:16 am Posts: 3942 Location: Denver, Wash Park Area
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New to me '77 Sport
It's loud. Very loud. Headset loud. But don't let that stop you!
_________________ 1976 Bronco "Green, Yellow, whatever", 1969 Bronco "Red", 1972 Bronco Stocker "Kind of Blue/Grayish"
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Tue Mar 15, 2016 6:06 pm |
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Aztec77Bronco
Official CCB Member
Joined: Thu Jul 05, 2012 11:54 am Posts: 119 Images: 0 Location: Just south of Durango
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Re: New to me '77 Sport
_________________ '77 Sport, 302 HO on it's way to a resurrection! '03 Mercedes CLK 320 Cabriolet (W208 body) '13 Ford F350 Lariat Crew Cab 4wd Power Stroke
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Tue Mar 15, 2016 9:11 pm |
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Aztec77Bronco
Official CCB Member
Joined: Thu Jul 05, 2012 11:54 am Posts: 119 Images: 0 Location: Just south of Durango
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Re: New to me '77 Sport
_________________ '77 Sport, 302 HO on it's way to a resurrection! '03 Mercedes CLK 320 Cabriolet (W208 body) '13 Ford F350 Lariat Crew Cab 4wd Power Stroke
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Tue Mar 15, 2016 9:12 pm |
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hockeydad4-22
Official CCB Member
Joined: Tue Nov 02, 2010 1:11 pm Posts: 2378 Location: Highlands Ranch Colorado
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Re: New to me '77 Sport
_________________ [color=#BFFF40]Greg
If you are the smartest person in the room - You are in the wrong room
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Tue Mar 15, 2016 10:00 pm |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: New to me '77 Sport
_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Tue Mar 15, 2016 10:11 pm |
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Jesus_man
Official CCB Member
Joined: Thu Nov 11, 2010 10:36 am Posts: 5984 Location: California
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Re: New to me '77 Sport
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.
_________________ 1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow. http://www.ucora.org
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Wed Mar 16, 2016 4:33 am |
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Justin
Official CCB Member
Joined: Sun Oct 10, 2010 12:04 am Posts: 6198 Images: 0 Location: Lakewood
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Re: New to me '77 Sport
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.
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Wed Mar 16, 2016 8:23 am |
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Kinder
Official CCB Member
Joined: Wed Sep 29, 2010 10:03 pm Posts: 4371 Images: 0 Location: Parker, CO
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New to me '77 Sport
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.
_________________ Best to Date MPG: 26.6
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Wed Mar 16, 2016 11:15 am |
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Aztec77Bronco
Official CCB Member
Joined: Thu Jul 05, 2012 11:54 am Posts: 119 Images: 0 Location: Just south of Durango
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Re: New to me '77 Sport
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?
Sent from my SAMSUNG-SM-G870A using Tapatalk
_________________ '77 Sport, 302 HO on it's way to a resurrection! '03 Mercedes CLK 320 Cabriolet (W208 body) '13 Ford F350 Lariat Crew Cab 4wd Power Stroke
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Wed Mar 16, 2016 10:31 pm |
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Jesus_man
Official CCB Member
Joined: Thu Nov 11, 2010 10:36 am Posts: 5984 Location: California
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Re: New to me '77 Sport
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!
_________________ 1973 Bronco, 351 SEFI, Locked, discs, 35's ZF-5spd and Atlas 4spd. 235:1 Crawl Ratio. It may be ugly, but it's slow. http://www.ucora.org
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Thu Mar 17, 2016 2:21 am |
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