Total rebuild of 6.4, stuck on exhaust headers

[mattxcullen]

Few months ago my truck blew up on me. I have a 2022 ram 2500 snow chief 2 tradesman. It’s just the tradesman with a beefier suspension and all the plug and plays around the vehicle. It does have the 392 6.4 hemi. It sounded like a wrench was in the engine after it came to a complete stop after climbing a small hill. Once it died I couldn’t get it to start so I changed the starter and when it was running that’s when I discovered the noise. I shut it off immediately and towed it back to my house to begin the stripping process. Sent my heads out to merkel to begin resurfaced and have new valves put in and checked for any leaks. I had 2 bad valves, nothing major but they saw it and changed them. That process was about a month or so long. Very busy time at the shop. I replaced all rod bearings and measure and cleaned and checked for all clearances on both the cam shaft and crankshaft. I replaced the cam shaft completely using a comp cams cams shaft specifically for the MDS delete I did. All new non slotted lifters and trays and I also installed all new piston rings on the piston heads. Inspected and cleaned all surfaces of the engine and honed out the cylinders. Long story short I’m putting my exhaust haders back onto the heads on a set a saw horses and I can’t seem to figure out the proper bolt pattern. Make all the jokes you want, I know it’s a gen 3 but Gen 3 goes way back to the early 2000’s. There’s numerous of differences to this engine, engine hardware, mounts, and also the chassis. I just want to do my part and say I at least did my research before building it the wrong way. I don’t have to tell others that parts ain’t cheap and what you think might not be a big deal can very well cause you to have to restart the whole process. Please no smart asses , it’s a hot day out

 

[Ken226]

Looks good.

which lifters did you go with on the rebuild?

 

[Wild one]

Looks good.

which lifters did you go with on the rebuild?

He joined on May 20th,made the one post and hasn't been back since Ken.Makes you go Hmmm

 

[Ken226]

He joined on May 20th,made the one post and hasn't been back since Ken.Makes you go Hmmm

So, EngineTech lifters, from Amazon.

And he's too busy trying to get them uninstalled before the Amazon return period ends to be posting on the internet.

That probably don't qualify as a smart ass comment, since he said: "please no smart asses, it's a hot day out".

 

[EdGs]

Why would you have to replace rod bearings in such a young engine? What was the original failure? Lack of oil? Overheated?

2 bad valves, too? Damaged?

Don't the exhaust manifolds only go on one way?

 

[jc56berg]

Few months ago my truck blew up on me. I have a 2022 ram 2500 snow chief 2 tradesman. It’s just the tradesman with a beefier suspension and all the plug and plays around the vehicle. It does have the 392 6.4 hemi. It sounded like a wrench was in the engine after it came to a complete stop after climbing a small hill. Once it died I couldn’t get it to start so I changed the starter and when it was running that’s when I discovered the noise. I shut it off immediately and towed it back to my house to begin the stripping process. Sent my heads out to merkel to begin resurfaced and have new valves put in and checked for any leaks. I had 2 bad valves, nothing major but they saw it and changed them. That process was about a month or so long. Very busy time at the shop. I replaced all rod bearings and measure and cleaned and checked for all clearances on both the cam shaft and crankshaft. I replaced the cam shaft completely using a comp cams cams shaft specifically for the MDS delete I did. All new non slotted lifters and trays and I also installed all new piston rings on the piston heads. Inspected and cleaned all surfaces of the engine and honed out the cylinders. Long story short I’m putting my exhaust haders back onto the heads on a set a saw horses and I can’t seem to figure out the proper bolt pattern. Make all the jokes you want, I know it’s a gen 3 but Gen 3 goes way back to the early 2000’s. There’s numerous of differences to this engine, engine hardware, mounts, and also the chassis. I just want to do my part and say I at least did my research before building it the wrong way. I don’t have to tell others that parts ain’t cheap and what you think might not be a big deal can very well cause you to have to restart the whole process. Please no smart asses , it’s a hot day out

I'm impressed Matt. I do simple maintenance on my 2020 Lonestar what may be needed on the top end water pump, hoses, plugs and such but have never dug deep in an engine like a rebuild like you've done. I couldn't make a pimple on a mechanics behind. Have no advice about your headers but my hats off to you.