Have to base what needs to be addressed on goals after assessing what you have first. Many things can be done to add power, safety, or longevity but will be up to the owner if worth the time and $ to weight out the pro/con based on current condition. So that's not something I can give a straight forward answer on other than an engine with 100 miles should be fine unless it has a lot or corrosion or physical damaged somehow.Trd what would you consider a logical PM (preventive maintenance)when swapping an engine or while engine is out of car ?? Throw out bearing ? car has 100mi on it porting and polishing head and should intake manifold gasket be changed if still in good condition it just seems silly to change something just cause a company says to one of those highprofit procedure that isn't needed . And heat shield on engine or no heat shield for stop and go heat shield may help but when car is completely cool before next start what good is a heat shield for engine? I have many questions and I like to assimilate ass much data as possible before I decide thanks for your input and your experience is appreciated and unrelated I am trying to hone my abilities of conversation and I'm guessing that your 28 years old or your a very articulate 42 year of age. Not that it matters in any way I just like to see if I'm correct
Re hot/cold, both can kill engines. Cold actually causes more engine damage but you mostly hear about hot killing them as this is usually due to a part failing causing it to get too hot. Keeping in a good range based on the specs of the parts is best. Heat shields are used in different areas of the car. Not exactly sure which you're referring to exactly?
I'm between the two ages and have been involved in competitive level motorsports for over 2 decades. I'm a red-neck born and raised in Central NC but top 1% in grade school and college. Quite the dangerous combo! Lol! ;-)