Rebuild question.

[Rogersm015]

I have been breaking down my 400 for a rebuild. Today I was degreasing the block. When I was using air to blow dry it I put air through the oil passages for the lifters, a weird silver putty like goop came out of the passages. Any idea what this could be? Just wondering if it’s something I should be concerned about.

 

[melsg5]

not knowing the history of the engine makes it difficult to answer especially without seeing/feeling it. Could be bearing material but purely a guess. You are sending the block and heads out to a machine shop to be checked/worked on?

 

[G-12558]

not knowing the history of the engine makes it difficult to answer especially without seeing/feeling it. Could be bearing material but purely a guess. You are sending the block and heads out to a machine shop to be checked/worked on?

I’m sending out the block, probably getting new heads because I want to up the performance a little.

 

[Rogersm015]

I’m sending out the block. Still tossing around the idea of replacing the heads to up the performance a little.

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[melsg5]

you have looked at the Edelbrock heads?

 

[Rogersm015]

I have been looking at them. Btw the consistency of that stuff was like toothpaste.

 

[92 Sunbird LE]

Old Motor Grease aka assembly lube?

Doug in P.R.

 

[Rogersm015]

Thank you. I was thinking it might have been something like that. It was just too consistent a texture and color. It makes sense.

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