Car was sitting the last ten years but wasn't too dirty, just dusty. Lightly sprayed everything with Gunk, then went over it with my pressure washer. Let it dry a few days, then sprayed everything with Meguier's Hyper Dressing mixed 50/50 with water.
In my past life I had a couple 3300 V6's and 3800 series engines (Buick Park ave, Buick Century, Oldsmobile Cutlass) The engines outlasted the vehicles that they were installed in all 3 times. and all 3 went over 200 plus k miles with the century around 238K.
And yes even the 3800 park ave had a factory strut tower brace. the smaller 3300's vehicles I don't believe did.
From what I remember coil packs were a sore spot though I even replaced the main engine computer that was under the coils a few times, with the coils more times then I can actually remember.
@atikovi Stand up engine detailing job! The quality of your work shows with the attention to detail - good job.