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General Discussion

General Discussion for all diesel-related topics
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Buildup Showcase Threads - All Engines, Vehicles

The place to display your diesel conversion project in progress or completed.
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Performance Discussion

Performance increases, diesel racing, turbo modifications, etc.
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Cummins Tech Section

Tech specifically for Cummins B series engines.
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Common Rail

Discussion on common rail technologies
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WVO / SVO / Biodiesel

Place for discussion for use of alternative fuels (vegetable oil -- & biodiesel )
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Methanol / CNG / Propane Blending

Place for discussion for blending of Methanol/H2O, CNG or Propane Alternative Fuels into your diesel system
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CNG Dedicated Engines

Technical discussion for dedicated CNG / LNG / Biogas Engines such as Cummins-Westport
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89
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Transmission, Adapter, Transfercase Discussion

Discussion of transmissions, transmission-adapting, and transfer cases for conversions
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Paint and Body

Paint, Body, Other Misc Resto Discussion
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817
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Suspension Design

The place to talk about suspension design, implementation, discussion
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Axles & Differentials

Ford 9", GM 14 Bolt, Toyota, etc...
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General Modification Discussion (Non-Engine)

The place to discuss general modification of trucks, wheelers, cars, etc. Not specific to the diesel engine.
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Diesel Motorcycles & Conversions

Diesel motorcycles and conversions of motorcycles to diesel.
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Engine & Vehicle Specific Sections

Cummins 6BT / 5.9 Conversions

Discussion related to conversion of the Cummins 5.9 B series engines
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Cummins B3.3, 6AT, & Cummins Variants -

Discussion related to other, rarer Cummins applications.
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Isuzu 4BD1T/2T

Topics related to the great Isuzu 4BD1T and 2T engines & related
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Mercedes OM617 & Variants

Forum for conversions with the Mercedes OM617 Inline 5 Indirect Inject Turbo Diesel from early 80's Mercedes Cars.
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Mitsubishi Diesels

Discussion of Mitsubishi diesels and variants
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Volkswagen Diesels

The famous Vee-Dub 1.9 TDI and IDI and other variants, 2.0, etc etc. Adapter talk, putting these into other vehicles, etc.
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Toyota Diesels

Related to the Non-USA and Canadian/World Wide Toyota Diesels. 12H-T, 1HD-T, 3B, etc etc...
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241
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General Motors V8 Diesels

Duramax, GM 6.2 and 6.5 diesel swaps
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996
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Detroit, Perkins, Caterpillar

Conversations on Detroit, Perkins, Cat variants for the purposes of conversions & general discussion.
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Deutz & Other Aircooled Diesels

Discussion of a wide variety of air-cooled diesel models
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Ford Diesels

Ford 6.9, 7.3 idi, 7.3 Power Stroke, etc.
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Cummins into Fords

The specifics of Cummins Conversions into Fords... All the small and big aspects of the conversion...
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Other Engine Swaps

General conversions of all types of diesel engines
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Classifieds & Vendor Showcase Classifieds are open to users who have been members for more than 20 days and have at least 10 contributing posts. The "Want to buy" section is open to all users.

Vendor Showcase

The best place for vendors to show off some of their stuff!
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General Classifieds

Classifieds for All Motors, Parts, Etc
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Vehicles For Sale

The place to sell complete cars or project vehicles
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Want to Buy

For those things you need - NO FOR SALE ITEMS HERE NO TRADE ITEMS
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Misc Stuff For Sale

For the selling of misc stuff not diesel conversion related
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Vendor Member Section 4btswaps.com Supporting Vendors

Vendor Deals

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CariD.com

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RockAuto

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Regional

Regional Events & Get-Togethers

The place to have events and shoot the sh** with other members from the board.
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Latest Posts See all new posts
  1. Transmission, Adapter, Transfercase Discussion
    Hello all, This is my first post here (other than a wanted ad for a 2wd nv4500 short tail housing), so hello! Doing a 4bt/NV4500HD into a divorced NP205 72 ford f250. Anyone know if the 2wd NV4500 chevy mainshaft and short tail housing wouldn't swap right into the Dodge NV4500HD 2wd...
  2. In need of chevy nv4500 2wd short tail housing. PM if you have one. Thanks, Sam
  3. Putting Old Blue up for sale guys. 1970 Ford F250 crewcab. Didn’t think I ever would but life’s been coming at me pretty fast the last couple of years and she’s just been sitting more and more. I was planning on passing her down to my son but it turns out this next generation has a few concerns...
  4. Transmission, Adapter, Transfercase Discussion
    So a buddy of mine is doing this diesel conversion with a 4000 pound truck and a 4bt. The truck will be a daily driver to go back and forth to work in only no towing with it. The issue of trans selection has come up and after talking with a local very reputable transmission shop he is 80% sure...
  5. SOMEONE STOLE MY TRUCK SATURDAY AM BETWEEN 12:30AM AND 3:30AM FROM MY HOUSE IN HILLSBORO, Oregon, But they might post parts here. F250, 2000 SUPERDUTY, FOREST GREEN BED LINER ROCKER PANELS. License plate: CA46996 Hillsboro Police case number: 22-6175 I will continue to update this post and add...
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