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I've gotten a lot of feedback on the 400BC, BC400, BC-400, but I don't easily find them on the internet. What would be the specific model for the BC400? I'm seeing NTC400, Form 400, ISM 400, ISX 400 (which I think has too much electronics)... I'm just hoping to get a little better...

JD... What would I need to do to get 350HP out of the 6CTA8.3? Will I have any overheating issues? I'd rather stick with what's in it, and modify it from there. I believe the Allison 4500 RDS is the best fit for what I want to do... get 350HP in the truck. All of you have been very...

Back again. I'm settling on the Allison 4500 RDS, but don't know which engine to use yet. I would like something that would be as straight an exchange as possible with the 6CTA8.3. I've seen some comments about the Cummins 400, but all are pretty vague. Again, I'd like to get something that...

Nice to hear about your "new" truck from May of last year. I picked up mine in Sparta WI this month (January) and drove it home to Portland OR (a little over 1900 miles) and got about 6.8 MPG towing nothing. Drove through a blizzard climbing into a pass where semi's where slipping and sliding...

So it looks like I get the Cummins ISX15 450 and the Allison 4500 RDS, and that will give me what I want. Thanks for all the input, you were very helpful.

So..... I guess what I'm looking for is the right transmission to marry to a 500 to 600 HP motor. I would love to see it be a relatively simple exchange without too many modifications to the frame to make it work well. If I use the ISX15, is there a transmission/transfer case that would be a...

I got it from Government Liquidations. I took the train from Portland Oregon to Sparta Wisconsin and drove it back (just a little over 1900 miles) on a GREAT adventure. It did exceptionally well the whole trip home. I hit a blizzard in Montana going over the pass coming into Bozeman. While...

I'm looking into replacing the 6CTA8.3 that my truck came with with a more powerful engine. I found the ISX15 to be an interesting engine and ti comes in a version up to 600 HP. Has anyone done such a swap, and if so what should I expect along the way? Any help with this project would be...

Here's my beast...