Rocker Arm Manufacture

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**jwbavalon** · #1 06-22-2025, 09:41 PM

Hi, Does any one know the manufacture of this SBC rocker arm. It is identified with the letter T. The engine was rebuilt around 1999.
Thanks

ban617 · #2 06-28-2025, 02:43 AM

Trw ?

**LT1vette** · #3 06-28-2025, 04:13 AM

I'm pretty sure TRW was the manufacture for GM back then.

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