I fit my RV-8 for a Hartzell propeller and a Vans spinner back plate I gave it 5/16" gap clearance , it was perfect for me . Then I decided to use a Catto 3 Blade prop with a Vans back plate and spinner also used the recommended
2 1/4" spacer . it also fit perfect 5/16" gap . So I would have to say YES !
