Fast6.3

Hi hope you guys can give me some clues as to what might be wrong
I started my truck idled fine good oil pressure about 40 warmed it up to operating temp and started slow at about 2000 or 2500 rpms a knocking or
rattling noise started. I had only driven a couple of blocks so I turned around and coated home. I started it this morning good oil pressure at idle no noise as soon as I rev the noise starts. this is a built motors probe forged rotating assembly tsp 224/228 cam comp pushrods lifters stock rockers with trunnion upgrade melling high volume oil pump dart heads psi springs titanium retainers gen 4 5.3 iron block bored to 3.903 4inch stroke. I plan on draining oil in morning and opening the valve covers see if I see anything wrong motor has about 5000 miles rev limit set at 6500 any ideas would be greatlly appreciated

cabel1

iTrader: (3)

Loose torque converter bolts?

Fast6.3

thanks I will check that I have a 2800 stall converter

Fast6.3

Looked at the flex plate and stall converter couln no see any cracks or loose bolt though the hole I was looking through is kind of small. I took of the oil filter and opened it found small traces of bronze oil extremely dirty even though it only has around 2000 miles. im running joe gibbs 30-10 conventional oil. Going to remove valve covers see what I find. Any help would be greatly appreciated.