What is wrong with my motor? Figure this one out!!

[Mr. Chevy]

Eric and Donnie you guys win the "Golden Goose"!! The builder found that the pistons were just barely hitting in the cumbustion chamber by the exhaust valve side.. He is going to modify the heads and double check everything before closing it up for good...

He said the oiling system is working properly within the block and the lifters and cam are ok... I was hoping nothing happened to the cam. I get paranoid about "wiping" one of those out. We broke it in for 5-10 minutes at 1,500-2,000 rpms and then became more concerned with what the noise was that the engine was making checking that with the the motor at idle... I used the Brad Penn 30 weight green break in oil during the break inn.. I told the builder this and he said the cam would have "went" already if it was gonna go....

Eric and Donnie thanks again for the information!!

Rich

[markjohnson]

This sounds like very similar to problem a friend just encountered recently on a new 454 build. Turned out, the culprit was a Small Block Chevy oil pump driveshaft was used. So check into that possibility AND those threaded Allen plugs behind the cam gear.

[VintageMusclecar]

Glad to be of service.

Eric

[mockingbird812]

Ya gotta love the guys on this site!!

[Salvatore]

I use the Brad Penn oil also. Good luck with the car. Yes, the guys on this Site