prop for ericson 27

I need a new prop or used for my ericson 27 i have the atomic 4 engine. my boat was built in 1978. a stock prop will do but i need to know the size and shaft bore ect. and any info where i can find one at a good price. my boat is in ventura and i'm hauling it out for fresh bottom paint and would like to have the prop ready for a quick replacement. any info would be greatly appreciated. thank you all in advance, dave

prop for e-27

I also have a '78 E-27 with and A/4. Replaced the prop about 3 years ago with a CDI "Perfect Pitch" composite prop. You shaft is 3/4" Dia. If you go with a CDI, that is all you need to know to order. I am very satisfied with the CDI over the standard, original equipment prop. It is a bit larger, delivers more power in forward and is better in reverse than my old one. Give it a look.