Cummins 4BT & Diesel Conversions Forums banner
General Discussion Sections

General Discussion

General Discussion for all diesel-related topics
93.4K
27.2M
93.4K
27.2M

Buildup Showcase Threads - All Engines, Vehicles

The place to display your diesel conversion project in progress or completed.
46.7K
19.3M
46.7K
19.3M

Performance Discussion

Performance increases, diesel racing, turbo modifications, etc.
26.9K
14.3M
26.9K
14.3M

Cummins Tech Section

Tech specifically for Cummins B series engines.
19.7K
6.9M
19.7K
6.9M

Common Rail

Discussion on common rail technologies
1.7K
958K
1.7K
958K

WVO / SVO / Biodiesel

Place for discussion for use of alternative fuels (vegetable oil -- & biodiesel )
2.1K
860K
2.1K
860K

Methanol / CNG / Propane Blending

Place for discussion for blending of Methanol/H2O, CNG or Propane Alternative Fuels into your diesel system
355
216K
355
216K

CNG Dedicated Engines

Technical discussion for dedicated CNG / LNG / Biogas Engines such as Cummins-Westport
89
75.4K
89
75.4K

Transmission, Adapter, Transfercase Discussion

Discussion of transmissions, transmission-adapting, and transfer cases for conversions
26.6K
12.7M
26.6K
12.7M

Paint and Body

Paint, Body, Other Misc Resto Discussion
833
469K
833
469K

Suspension Design

The place to talk about suspension design, implementation, discussion
1.2K
615K
1.2K
615K

Axles & Differentials

Ford 9", GM 14 Bolt, Toyota, etc...
3.5K
1.7M
3.5K
1.7M

General Modification Discussion (Non-Engine)

The place to discuss general modification of trucks, wheelers, cars, etc. Not specific to the diesel engine.
796
616K
796
616K

Diesel Motorcycles & Conversions

Diesel motorcycles and conversions of motorcycles to diesel.
416
315K
416
315K
Engine & Vehicle Specific Sections

Cummins 6BT / 5.9 Conversions

Discussion related to conversion of the Cummins 5.9 B series engines
17.4K
7.9M
17.4K
7.9M

Cummins B3.3, 6AT, & Cummins Variants -

Discussion related to other, rarer Cummins applications.
1.6K
1.1M
1.6K
1.1M

Isuzu 4BD1T/2T

Topics related to the great Isuzu 4BD1T and 2T engines & related
22.8K
8.8M
22.8K
8.8M

Mercedes OM617 & Variants

Forum for conversions with the Mercedes OM617 Inline 5 Indirect Inject Turbo Diesel from early 80's Mercedes Cars.
4.8K
2.6M
4.8K
2.6M

Mitsubishi Diesels

Discussion of Mitsubishi diesels and variants
493
359K
493
359K

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.
1.6K
952K
1.6K
952K

Toyota Diesels

Related to the Non-USA and Canadian/World Wide Toyota Diesels. 12H-T, 1HD-T, 3B, etc etc...
241
239K
241
239K

General Motors V8 Diesels

Duramax, GM 6.2 and 6.5 diesel swaps
997
584K
997
584K

Detroit, Perkins, Caterpillar

Conversations on Detroit, Perkins, Cat variants for the purposes of conversions & general discussion.
21.4K
7.9M
21.4K
7.9M

Deutz & Other Aircooled Diesels

Discussion of a wide variety of air-cooled diesel models
2.4K
1.2M
2.4K
1.2M

Ford Diesels

Ford 6.9, 7.3 idi, 7.3 Power Stroke, etc.
747
518K
747
518K

Cummins into Fords

The specifics of Cummins Conversions into Fords... All the small and big aspects of the conversion...
5.6K
2.4M
5.6K
2.4M

Other Engine Swaps

General conversions of all types of diesel engines
3.5K
2.4M
3.5K
2.4M
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!
325
149K
325
149K

General Classifieds

Classifieds for All Motors, Parts, Etc
10.1K
1.3M
10.1K
1.3M

Vehicles For Sale

The place to sell complete cars or project vehicles
2.1K
442K
2.1K
442K

Want to Buy

For those things you need - NO FOR SALE ITEMS HERE NO TRADE ITEMS
7.1K
494K
7.1K
494K

Misc Stuff For Sale

For the selling of misc stuff not diesel conversion related
704
86K
704
86K
Vendor Member Section 4btswaps.com Supporting Vendors

Vendor Deals

31
19.5K
31
19.5K

CariD.com

320
156K
320
156K

RockAuto

49
28.8K
49
28.8K
Regional

Regional Events & Get-Togethers

The place to have events and shoot the sh** with other members from the board.
696
252K
696
252K
Latest Posts See all new posts
  1. Cummins Tech Section
    I have a set of 9mm injectors from an original 4BT head but it had cracked so I bought a PROMAXX which I believe are 7mm heads. Can the tips on the injector be changed to a smaller size or is it easier to replace the whole injector? Injector info: Kubal 50 59p2 649 246bar...
  2. Transmission, Adapter, Transfercase Discussion
    I have a VE pump 4bt out of a Chevy bread van. It has the SM465 bolted behind it. My question is this, if I remove the transmission and flywheel, the back of the 4bt is now basically a first gen small block chevy correct? So if i wanted an automatic, all I would need would be a flexplate, torque...
  3. Performance Discussion
    My 4BT does not have motor tags (so no clue about 105 or 120hp) but it does have tags on the Holset H1C the assembly number is 3525699 which after researching shows it has a 46cm intake and 16cm exhaust. I have a couple questions about upgrades if anyone has time to weigh in. Goals: 150ish hp...
  4. General Discussion
    Can anyone recommend where I can get a 4BT (SAA4D102E-2) rebuilt? I'm in Sullivan County, NY. Thank you.
  5. Isuzu 4BD1T/2T
    Hey all, I kind of want to get a thread going and just have a list of info. 1- What vehicle, daily driving curb weight. 2- What turbo and fuel changes you’ve done. 3- 4BD1t or 4BD2t, and wether you feel it’s adequate for the vehicles weight.
See all new posts
Top