I had what felt like a hydro lock recently during a restart after a stall. I also had a noisy drivers cam phaser and a 3045 code so I popped off the valve cover hoping a tweaked phaser caused the timing to be off and that caused the sudden resistance my starter felt. Phaser doesn’t look obviously tweaked. Then I checked cam journals. Popped two caps. Front was fine. Second one was scored. Ridges my fingernail could feel. I think I need a long block. Anyone run these with slight scoring?
thanks for reading.

Thanks for the input. Here’s more info. After the weird resistance I felt trying to restart (after it stalled) it started but ran like a dog. Stunk of fuel. It felt like a hydro-lock so I thought an injector stuck open and bent a rod on the restart attempt. Then I saw the cam sensor code and decided (because it was less catastrophic) the phaser had finally sheered the pin and the timing being off was the weird resistance for lack of better term. It felt really bad. Like hydro lock or spun bearing in hindsight.
So I checked phaser and cam journals as mentioned and ithere was some scoring. Enough to feel with fingernail. My next move is to check compression. If one bank is all low I’ll pull off the front cover and check the timing. If one cyl is low I’ll figure a bent rod.
As im writing I’m realizing I should’ve started with injectors. Got sidetracked. Ugh.
Also, I replaced the timing chain, guides, tensioners and one phaser couple years back. Left the drivers phaser and had cam sensor code on same side.
It wont start anymore so can’t check oil pressure.
Then... got under the beast and found rot on back of frame where shackles n bumper brackets attach. I thing big red is all done. Thanks for reading