Oil restrictive pushrods? What are those? I want my pushrods full bore to pass as much oil to the upper end as the pump will allow.
Lifter leakdown is typically a slow process, usually over hours, not minutes. I imagine if your pushrods were "restricted" in some way the oil would find a way to leak down past those puppies in that amount of time!
Don't sweat the leakdown, or short-duration tapping on startup (sometimes hot as well as cold). It should not bother a thing.
When my daughter bought her first brand-new '00 Grand Am GT that exhibited the same noise to the point where I took it in to GM. They said it was the nature of the beast. I made them write that diagnosis down on the service record so if it ever did do damage after the warranty we would just shove that record in their face! Needless to say, 60K later we still hear a little rap once in a great while, but that little 3400 runs like a top. The same thing holds true for my son'* '99 Grand Am GT too!
Just keep that oil changed at 3K miles and maybe the filter at around 6K and she should serve you well way beyond the 200K mark. BTW my old very-well-cared-for Bonne just turned 200,000 miles this past weekend. I'm waiting for the water pump, alternator, or tranny to go next. Hope the tranny holds up for at least 10K more. I'm getting an 02 SLE this Fall. Gotta get that vette paid off first. That little Bonne is so sweet I just hate the thought of getting rid of her. I'd like to keep her in the family but I can't do with 4 cars.
The body is excellent, leather very good, engine clean as a pin (inside and out), new tires, new front end, including rack. Not a pin-speck of rust anywhere. Finish looks as good as my daughter'* '00 GT. If someone on this forum would like a very nice ride, and promises to keep her up as I have, I might consider giving you a sweet deal on her next year. CAN YOU BELIEVE I'M STILL RUNNING THE ORIGINAL FACTORY EXHAUST (MUFFLERS AND ALL). TO ME IT LOOKS LIKE THE COULD DO ANOTHER 5 YEARS!!
Man, am I digressing. Well, that'* a love affair for you.
2001 SSEi- black; stock 92K
1995 Vette; Competition Yellow; stock; 38K