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Yes, steve is running the stock Allison 5 spd. Too.

Sorry, I can't get pictures to load to SS. You will have to check them out of my FB page A&H Recon shop

I want to Thank all the guys that helped me out on the swap, Martin Cox, Greg Smith, His brother in law Andrew, Glenn and his son. Also want to thank my new Mechanic Tim, it is great to have a fellow Marine working in the shop with me, Oorah and Semper Fi.

I am running the stock Allison 5 Speed. My Customer Steve in Ct. Has been running a 450 HP Big Cam in his M929 and runs 1600s for two years with out issue.

The benifits are worth the work. The motor is pushing 350 HP and 1150 Ft lbs of torque. Plus it has piston squirter, huge oil cooler and Jacobs brakes.

Just finished putting the Turbo Big Cam Cummins 290. In my M936 Wrecker. My good buddy Martin Cox was selling his wrecker and I couldn't let it pass. I took the 250 Cummins out of the wrecker and put it in my old M923 that Capecoastie now owns. This is a very difficult swap, I would not...

The engine is ready to go back in but, I have to put it on the back burner. I just got hired for a M931A2 bobber build and a M923A2 four door bobber build.

My customer Steve is running his 450hp Big Cam through the original M929's transmission. He said so far so good:)

Well, I won't be at the 2014 Sussex NJ show with my truck. I hit a wall with a few parts. I was making great progress but the odds were against me. I am doing a bunch of custom work to make everything fit like "the factory" did the work. I will be painting the front frame while the motor and...

Just a quick update. Of course I pulled the old Cummins 250, Pressure washed the Cummins 290 engine, changed the air compressor, replaced all o rings, replaced rear main seal, made new dual fuel feed lines, changed over all sensors and accessories, added grease fitting to water pump and idler...

I have been working 16 to 18 hour days working on the swap. The Cummins 290 is the same block as a Cummins 250 but they are different in just as many ways. I am replacing all of the rubber O-rings, hoses and doing all the hard work while the engine is on the stand. I have had to make some custom...

Reusing the Allison transmission and I blew a head gasket in the cold weather.

pictures Here are some pictures to show the progress.

Ever since I bought my first 5 truck. I have always wanted to put in a more powerful engine. I bought a rebuilt Cummins 290 a few years back and put it on mothballs. Last year I sold a Cummins 400 big cam to Setvepala. Well now it is my time and I am biting the bullet and getting it done before...