Lifter noise from BOSS 290
I have noticed lifter noise on start up on two occassions with a new BOSS 290 motor. (approx 1500 km)
The first time I had driven the car at highway speed, parked the car and 20 minutes later restarted the engine. The car was on flat ground and the engine would have been still warm from the recent trip.
The second time it was essentially the same sequence except the car was parked on a slight downwards slope.
When the engine was started I could hear a definite tap tap tap tap tap from the top of the motor before it righted itself after two maybe three seconds.
The engine has been started maybe fifty times and I have only noticed this twice.
So what are your thoughts? Is this normal?
Should I instigate an early oil change or even a different brand of oil??