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Catastrophic Engine failure. 454 gen 6

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Old 08-06-2021, 10:07 AM
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I miss read you stating you ordered a moroso ? yes tig or braze all the way around the pickup tube
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Old 08-06-2021, 10:17 AM
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Originally Posted by F-2 Speedy
I miss read you stating you ordered a moroso ? yes tig or braze all the way around the pickup tube
The Moroso was just a replacement pickup. I wanted to replace the factory round press fit with one that bolts in. Just so I don't have to braze it. I don't Tig and my brazing skills between dissimilar metals leaves alot to be desired.
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Old 08-07-2021, 06:30 PM
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Originally Posted by F-2 Speedy
I miss read you stating you ordered a moroso ? yes tig or braze all the way around the pickup tube
See any need to braze the tube after I mig weld this tab on? It's pretty decent gauge so nothing is moving. I don't understand why they can't just come with a tab...


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Old 08-09-2021, 07:44 AM
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I finished with the short block, but unfortunately my machinist ended up in the hospital before I could get my head back. I might clean up one of the heads I just picked up depending on how long he's going to be. If I had the head, I could have been on the water this coming weekend without a problem.








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Old 08-09-2021, 08:07 AM
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I like to braze the tube in place so there's no chance of it sucking air
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Old 08-09-2021, 08:41 AM
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Did you end up replacing all of the intake valves (both heads)? Because contact was made across all of them, and with one severely damaged, I would assume they're all compromised.
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Old 08-09-2021, 10:16 AM
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Originally Posted by TomZ
Did you end up replacing all of the intake valves (both heads)? Because contact was made across all of them, and with one severely damaged, I would assume they're all compromised.
I'm not replacing all of them. Most of them were barely touching by the looks of the pistons. I checked them all and they seem ok. I know you can't see micro cracks etc., but with it being a hydraulic valve train I'm not as worried about it. If anything, I'm worried more about the pistons.

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Old 08-09-2021, 10:23 AM
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Hyd lifters don’t quite work like that.
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Old 08-09-2021, 10:46 AM
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Originally Posted by SB
Hyd lifters don’t quite work like that.
Like what? Have any give? I know, but it's still not a solid lifter at least. False sense of security. I get it.
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Old 08-09-2021, 11:15 AM
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Edit: I gave a bad example/visual in this post, lol

Last edited by SB; 08-09-2021 at 11:19 AM.
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