Any model that calls out for a 60 glow will be stout enough for a 60 gassie.

A couple years ago I converted an Extreme Flight Extra 78" model to gasoline. If you ever saw how lightly constructed that one was you might say I was nuts to put a piped DLE55 in that model. The model weighed around 12 1/2 pounds all up. That's extremely light for a 55. Boy was that fun!!

Most recently I converted a Vanquish Electric 2 meter model from electric to gasoline. Same deal....extremely lightly constructed yet the model is a great gas engine test bed

I thinkmany need to start reconsidering what they think about current crop gas power. It is no longer the older, klunky, overweight, cantankerous powerplant from 20 years ago, or even 10 years ago......One thing certain, all other things equal, a 4 stroke develops much more vibration than a 2 stroke gas engine.