How to tell it's a 582 blue or Silver top

[Folla]

My 582 Blue top, blue is coming of. Someone told me it's not a blue top but silver top.
Is there a way on the engine nr. or serial nr. to make sure what type engine it is?
The logbook state blue top, but Hey who know's.

[mulderpm]

Folla, The mod 99 (blue head) has a different cooling system. It has a water pipe from the top to the bottom of the engine. (See diagram). It also has a harmonic damper on the flywheel. Most blue heads are set up for oil injection. Many of the older grey heads do not have a provision for oil injection.

To be 100% sure contact Comet Aviation with your engine serial number.

[Folla]

Thanks, Will make sure with comet.

[Duck Rogers]

It also has a harmonic damper on the flywheel.

Never heard or seen a "harmonic damper" on a 582..
Perhaps you meant "hydro damper" but then the mod 90 (silver) and mod 99 (blue) both have those