Hello i have about 1500 miles on rebuilt 355 .030 over lt1 in 1993 camaro with -24 cc srp pistons pro comp 7/16 6.0 rods and stock replacement scat 9000 crank. I have had a little metal in oil just a little bit since rebuild about 6 oil changes i have never been easy on it since about 500 miles it makes a ticking noise but i think that is a guide plate and pushrod or valve train noise it has really good oil pressure 70-80 psi and about 30 at ideal but inside car it sounds like a light knock I have procharger on it with 10 psi and promag 1.6 nsa rockers withe gm guide plates. If a bearing was not right from crankshaft deflection would it be a main and could a bearing be on the way out with that good of oil pressure it barely has any noise besides tick i don't know how to post video otherwise i would still runs great approx 580 to 600 hp i also have long tube headers bearing clearences where set at .0023 thanks

 

anyone please help opinions

 

What you're going to have to do is get a good stethoscope (they make specific automotive ones!), get the car up on jack stands or a lift so you can get under, next to and all around the motor and just go to work at pinpointing the noise. It's very hard to explain a sound over the internet, and even so some problems could cause similar sounds even though sometimes they shouldn't. The only way to tell for sure is to pinpoint where the sound is coming from as best as you can. Do you have an auto? I have heard a converter make a knocking noise that sounded an awful lot like bottom end knock at idle. Cracked flywheel could do the same.

Bent pushrod could be causing the metal shavings as well especially if you are running guideplates.

 

i have sethascope and no real loud sounds from oil pan just sounds normail #2 cylinder sounds like a real bad tick i am thinking guide plate to pushrod but you can only really hear noise inside car and to anyone who has broke in motor i have ran it pretty hard 1400 miles on it and still just light metal in oil just a little bit is that normal not alot at all but there

 

I wouldn't worry too much about a really tiny amount of metal...

Could it just be an exhaust leak? I've had small ones make the most annoying tick, and with #8 I could only hear it in the car.

 

sometimes i hear it and someimes i dont' so does that rule out bearings today it was 50 degreees out took it for a beating of its life and it didn't make noise but when air outside is cold it seams to do it more.

Another question my mains and rods are set at .0023 is that way to tight i wonder if bearings are getting rubed when crank if deflecting because of power

 

oil gallery plug blew out of passanger side lifter gallary causing lifters to sound kinda like a very quiet knock, loud tick does anyone know if that oil gallary runs straight through lifter bores still had 80 psi oil pressure that is why iam asking if would make since if lifters where moving up and down it would block alot of flow