I ended up ordering trunnion kit off Amazon https://amzn.to/3ksELE7
I want to fix any weak points in the motor when I build it. That's my primary goal, hope for this to be a forever motor (if there is such a thing). So I went with the bushing ones. There's no roller.
I ordered these OEM Flat Top/LQ9 pistons: https://amzn.to/3np0sag
The guy I bought block from is an engine builder. I picked it up at his shop. I asked him about balancing the crank. He said I shouldn't have to touch it so long as I build the motor with GM spec internals. I had wondered about upgrading these pistons to HyperEutectric. However, just went with the OEM flat tops.
I'm stumped right now on what lifters to get? https://ebay.to/38GVphl
The engine builder STRONGLY encouraged replacing the factory lifters. He said the rollers tend to chip on them, and that's one of the reasons they have the lifter noise. He said I think "Johnson" lifters. I tried to call him to verify but cannot seem to reach him right now.
I'm looking at upgrading the oil pump, want higher volume, not sure about higher pressure.
I'd love to get the SLP high volume pump but seems they don't make those anymore? It would be a factory part number. Bit worried about slapping on say a Melling 295HV. He said these blocks spin cam bearings because there's only one oil port on each journal. It creates a hydrolic wedge and imbalanced load on the bearing. So I want to be very careful about which pump I get. Higher pressure could push the cam harder into the other side of the bearing. I definitely want more volume, just not more pressure. Again, I wanted to ask him but I cannot seem to get a hold of him right now.