Hey

I have GP Piper Cub 40 that needs an engine and I have a brand new OS 40LA and an old Tower .40.
Which one will be better for this plane?

Thanks

I don't know about an old Tower .40, but the LA engines are very light, and it should be a great match for the cub.

Alex

The tower .40 was an improved OS .40FP. The LA.40 replaced the FP in the OS product line. Most informed people I talked to prefer the FP to the LA. The general feeling was that production costs were lower for the LA. Power also seems to have taken a beating in the change.
Fly what you choose, as for me I own a few FPs but don't even want any LAs.

six of one, half dozen of the other!

Max

exactly! either one will be loads of power for the cub.

ajc

If all else fails....flip a coin !