Pre cups

[DylanAgan10]

In search of 7.3 idi pre cups. If anybody has any in good condition they’d be willing to sell it would be appreciated

 

[Mrrusty]

I've been looking for the last week and no luck. I'm at the point where I might have some printed out of inconel then centerless ground on the OD for the interference fit. I just need a stock one to measure so I can reverse engineer it.

One of mine is chipped right at the fire ring and all of them are cracked but still usable.

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[catbird7]

Would that be something R&D IDI Performance might have? According to his youtube videos, he does head work.

 

[fireballv8]

Ive got a 4tz-6057-a precup in the factory package on the way.
Im interested in the 3D printing idea.