General Discussion for all diesel-related topics

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

Performance increases, diesel racing, turbo modifications, etc.

Tech specifically for Cummins B series engines.

Discussion on common rail technologies

Place for discussion for use of alternative fuels (vegetable oil -- & biodiesel )

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

Technical discussion for dedicated CNG / LNG / Biogas Engines such as Cummins-Westport

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

Paint, Body, Other Misc Resto Discussion

The place to talk about suspension design, implementation, discussion

Ford 9", GM 14 Bolt, Toyota, etc...

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

Diesel motorcycles and conversions of motorcycles to diesel.

Discussion related to conversion of the Cummins 5.9 B series engines

Discussion related to other, rarer Cummins applications.

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

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

Discussion of Mitsubishi diesels and variants

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

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

Duramax, GM 6.2 and 6.5 diesel swaps

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

Discussion of a wide variety of air-cooled diesel models

Ford 6.9, 7.3 idi, 7.3 Power Stroke, etc.

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

General conversions of all types of diesel engines

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

Classifieds for All Motors, Parts, Etc

The place to sell complete cars or project vehicles

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

For the selling of misc stuff not diesel conversion related

Suggestions and/or problems with the 4BTswaps.com site and forums?

Chit chat is an info source for things unrelated to diesel conversions. Please refrain from flaming and personal attacks

The place to introduce yourself. Welcome to the board!

Highlighting trips, events, road trips, off road trips, etc...

The place to show off some of the other sweet stuff that you build or work on, unrelated to diesels or diesel conversions. Old muscle cars, fab projects, etc.

Discussion of Tools and other shop-related info!

The place to have events and shoot the sh** with other members from the board.