69Camaro427

Maybe try and throw some type of oil additive and pray that it clears it up haha.

What oil are you running? I run 10W30 in winter and 10W40 in summer. The 10W40 really quiets any taping/knocking I have randomly during the hot 100+ days.

69Camaro427

Are the oil pressure and lvls fine. After my cam swap my truck was tapping bad b/c it was burning through oil fast, so I replaced the PCV and it fixed everything.

Beatdown Z

iTrader: (18)

5w-30

At this point I don't even care if it blows up. I'll find a known running engine to put in if I have to. I just need this van back on the road. It's been down way too long.

There's only three things it can be, in my opinion. Bent rod, bad piston/wristpin, or bad rod bearing. I think if I put enough miles on it, I'll find out which one it is...

Beatdown Z

iTrader: (18)

Oil pressure and level are perfect.

Beatdown Z

iTrader: (18)

Piston slap is a possibility too, I guess.

69Camaro427

Have you had a chance to let the motor warm up to see if it goes away?

1FastBrick

iTrader: (17)

Is this a press pin rod an pin combo?

Are the rods and pistons assembled correctly?

Beatdown Z

iTrader: (18)

Yes, it's a pressed pin and rod. I'm 99% sure they're assembled correctly.

I have let it warm up and the noise is still there.

Beatdown Z

iTrader: (18)

Have the pan off right now. Can you guys think of anything I can check while it's off?

Could anything fuel/ignition related cause that noise? I'm working with accessories and **** that has 220k miles on them.

Beatdown Z

iTrader: (18)

LOL, ******* junk