My Brother has a 6.4 truck with a bad cam, Bought it that way, knowing Im a chrysler tech and Im going to help him build him an engine for it. He is a quite competent diesel tech. So, I found some issues with his block, 266K on it, and they drove it with A bad cam for a while, Lots of metal went through the block, Really messes up a cylinder, Ether way, my Brother bought a new block from my dealership, but we dont need to spend a huge amount of money on this build in way of forged pistons or rods, but all these gen 3 hemi shops have take out pistons from the car SRT, quite a bit cheaper, but they all say the assy wont fit in a truck BGE block... But I read on here a guy put an entire SRT rotating assy in one. MMX says the Truck block is way thicker and interferes with the block.

We can buy take out brand new SRT piston and rod assemblies that will bump compression a touch, and have the full floating pin for significantly cheaper this way, and Ethen is wanting to go this rout.

Does anyone know if the claim from MMX is 100%, or can I clearance the block for the interference?

My parts catalogue lists two different numbers from the car to the truck im thinking due to compression on pistons, and the floating rods.

Kasey

A bge block is a bge block, truck or car is the same, the truck piston has the ring pack lower thus a lower compression & more durable than the scat 6.4 ,, copy a link where MMX said this

I dont have a link, but Ethen called them and thats what they said on the phone. I assume if Ethen was towing the beans out of the truck, this might not be the best idea, but if he is just driving it, and occasionally towing a dump trailer to the city dump it would be fine.

The other thing I like is the fact that they are a bushed wrist pin, and I could buy a nice set of lower end forget coated pistons and just run a lower compression piston but then get the durability of a forged piston.

I can tell you with 100% confidence you can put the entire 6.4 SRT8 rotating assembly high compression pistons and all in a truck block in a truck and it will run great. I just did this about a month ago and it runs great even with the truck 6.4 cam but I would plan on premium fuel, he had occasional 1 or 2 degrees retard due to spark knock but his truck also had 2 year old 87 octane in it when I put the engine in. If you are running the SRT8 crank you may need to remove the TQ converter centering ring depending on what trans you have and what trans it had.