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View Full Version : Rocker Arm Manufacture

jwbavalon
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
06-28-2025, 02:43 AM
Trw ?
LT1vette
06-28-2025, 04:13 AM
I'm pretty sure TRW was the manufacture for GM back then.