Lost & Found Thread - Post 73.5 911 and other Porsche

I have 74 911 engine number 6140992

Longshot but...Looking to find my original engine from my 1965 912 Engine #740745

Hello all.

I know it's not "early" but I am on the hunt for the original engine for my 75 911S. To my knowledge, the engine was replaced with a 3.2L in the early 1990's in the Santa Cruz, CA area. Any help would be greatly appreciated. Engine #6551699

Thanks,
Dustin