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4btswaps.com

Welcome to 4BTswaps.com. We are a web site about diesel conversions into all vehicles though we are heavily focused on the famous Cummins 4BT engine.
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Latest Posts From 4btswaps.com

4BT Vacuum Pump Help
I have a rotary pump 4BT with an aux. belt driven vacuum pump. The pump was mounted on top of the engine and has a V-belt pulley. I need one. They...
Crankshaft Tolerance
So I heard back from the machine shop on my 4bt - some good news, some I'm not too sure about. Cylinder walls and block are good-to-go. Some...
ISB 170 and full size pickup
I've done a bunch of searching and found various threads about ISBs being swapped into full size trucks but I haven't found any good info about...
5.9 won't start at 17 degrees
I'm working the bugs out of putting a 5.9 12-valve into a '96 Suburban. This 12-valve was hard starting at temps in the 40's but completely refuses...
ISUZU 3.1L BIGHORN 4JG2 Enough power? Tundra Swap
Hello! I'm looking to buy a Toyota tundra 1st Gen (2002) and I found an Isuzu 3.1L Bighorn 4JG2 with 4x4 manual trans for 2k$ CAN and I was...
Unique Detroit application
I know I haven't seen this one, wondered if anyone else has? www.youtube.com/watch?v=mbkMfTktcDg www.youtube.com/watch?v=EQ--R53PJyw Looks...
Question about overdrive with diesels
Ik in gas engines overdrive is a significant boon to economy because it lowers rpms alot but in diesels they dont rev much anyways. Is overdrive...
Injector options
It looks like i will be getting new injectors and i have a question...so here goes. would I see any improvement in efficiency by going to more holes...
Throttle position sensor
Looking for a good way to mount a tps sensor for my transmission controller truck is a 93 chevy with 6.5 that I am swapping a 4bt with a p-pump. I am...
Need help on deciding swap.
im new to the forums been a lurker to all of em but never posted and dont generally participate in forums so if this is in the wrong section im sorry...
fuel pump drive and injector questions
Hey guys, Just picked up a 4-53N and and in the process of stripping it down for a rebuild. I have pulled the fuel pump off and noticed how weak...
buying 89f350 need help on a few things.
Ok so this is the deal.I finally after looking @ countless trucks have found the truck I want forsure.Its a* 89 f350 cummins swap 5 speed. Has 250...
Is the 6v53 the biggest engine people on here have fitted in a Pick Up?
My search for a local 453T or 6v53T is coming up short. But I keep finding 671 and 8v71s. Just out of pure curiosity, has anyone seen something...
I'm about halfway through my twin-turbo swap.
Replacing my Hy35 with a 6cm hx30 and a 14cm hx35 billet-wheel. Both real Holset turbos. I'm about halfway done now.
what the difference between a hx30 and hx30w
what is the difference between a hx30 and hx30w turbo