So I was driving today thinking "My exhaust leak got much worse." It went from a "tick" to a "knock." Looked at the oil pressure and it was low!
When I pulled it on the driveway it dropped all the way to 0!!

My questions are:
Whats the knock comming from and is it going to need replacement?
How much does a rebuild kit cost? Where to get one?
Any advice/tips/suggestions are welcome!!!


Also, the car would only knock at certain RPMs/Pressure, so it wasnt like a constant knock like a bad rod.

Help!

 

Spun bearing. You have my condolences.

If you had oil pressure for a while and it was making noise, its a bearing. If it was 0 right away when it made noise, its the pickup tube (fell off).

 

Thank you Gripenfelter, I look forward to the videos you post on performance-shop! How much am I looking at on parts? I'm definitely going to do the labor myself.

 

Depends on how long you've been driving the car and which bearing is spun.

If you're lucky, you will just need: bearings, rings, gaskets, and a new oil pump (might be damaged from metal).

If the bearing has been spun for a while you will need: new crank, new rod if its a rod bearing, plus the above.

If you were in Canada I could get you a deal on all the parts.

See you on P-shop.

 

I'd just pick up a stock LT1 shortblock with under 50,000 miles for a few hundred dollars.

Mike

 

From Ebay?

 

A "beginning" rod knock will not knock under load or idle.Ya have to get it in the "float" position with the gas-- no pull, no let off,then ya can get it to do it all the time.The only time a rod can be heard at idle is if it's fixing to window the block in a few revs.
A main brg will knock under a heavy load at lower RPM's and at free upper RPM's

Buy a crate short block from the general(GM).His 383 comes with a warranty and ya can probably do the rest yourself.Just knock the wood off and go to work.Get a decent cam and your heads done by Loyd stage 3 and maybe his cam and go have fun.