RE: Yellow Aircraft P-40 Engine?
Chris,
I built the Yellow P-40 for a friend. He chose the 3W-75I, as the 80 was not yet available. The airframe has the first set of scale exhaust stacks built by Keleo Creations.
I'll attach pictures when the server cooperates to give you a sense of the size within the cowl. Nothing sticks out of the cowl, and I only needed to put two holes in the cowl for allen wrench access for the custom exhaust manifold.
Good luck and post pictures when you complete the project.
Regards
Craig