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Black Thunder

Well-known member
Joined
Oct 14, 2001
Messages
143
Location
Port St Lucie,FL
Corvette
1968 Black Custom Vert 454 BB
Well finally know what happened. Had a roller rocker stud failure. Seems the screw in studs were on the short side so not holding upper retainers by many threads so it failed.

Had to pull intake to get lifter but fortunately no major damage as engine valley had screen across & caught lifter from puking the works. Tip of pushrod a little bruised, roller rocker got a small mark.

So dodged a major bullet & was getting a mixture of gas & oil into cylinder. Have to wait a week to get special order longer studs to replace on all rockers. Might as well fix it right so this never happens again. Replace pushrod, change studs, adjust lifters & seal everything up nice & tight.

Not pretty but could have been catastrophic. Can't believe how well you folks responded & will never forget it. Being new to the community I hope to someday be able to help someone as you have tried to help me.

Thanks folks,
John
 

Black Thunder

Well-known member
Joined
Oct 14, 2001
Messages
143
Location
Port St Lucie,FL
Corvette
1968 Black Custom Vert 454 BB
Keith....... Thanks I was seeing thousand dollar bills with wings!

Thanks again for your input & will try to help you someday, hopefully for something much less serious.........John
 

Black Thunder

Well-known member
Joined
Oct 14, 2001
Messages
143
Location
Port St Lucie,FL
Corvette
1968 Black Custom Vert 454 BB
An engine pic:
 

69MyWay

Well-known member
Joined
Jul 3, 2001
Messages
4,364
Location
Auburndale, Florida
Corvette
1969 Killer Shark
Great news. The last I checked in it looked like you were going to have to yank the whole thing.

Has that motor been on a dyno? Do you have the exact specs and parts numbers for all the goodies in there?
 

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