What is standard prop for my boat

[cudaguy71]

I purchased a boat with no prop and need to know which would be the correct one...

1988 Thundercraft 170 Citation, 16.4ft. TCT26670I788

MCM 3.0 liter 181cid 130hp

MerCruiser Drive Unit #0B803692
MerCruiser Alpha One

RPM stated on my 3.0 engine is 4200 - 4400

Would like to get prop for top speed...

Thank you...

 

[steelespike]

Re: What is standard prop for my boat

A healthy 3.0 should do ok with a 21 for most purposes.

 

[cudaguy71]

Re: What is standard prop for my boat

A healthy 3.0 should do ok with a 21 for most purposes.

Buddy of mine has a 19 that will fit... Would it work ok? Thanks...

 

[steelespike]

Re: What is standard prop for my boat

A 19 will work,likely better hole shot just watch the wot rpm.