57 rude 65 LE Advice

[Det River Rat]

Putting together a 1957 Evinrude Big Twin. I purchased a lower end pin drive from ebay off a 33 hp 65 Johnson. Question is what prop should I use. I have been looking for a part number, but no luck. Thanks

 

[tx1961whaler]

Re: 57 rude 65 LE Advice

What kind of boat?

 

[Det River Rat]

Re: 57 rude 65 LE Advice

Sorry the boat is a 14' aluminum starcraft.

 

[steelespike]

Re: 57 rude 65 LE Advice

Original prop on the 57 was 103/8 X 13 1/4 If you often carry another person and gear I'd go about 12'
The 33 was 103/8 X 12 in 65 the 40 and 33 came with a 103/8 X 12.
A number of optional props were available up to 14"
Props are available here 12 " is SKU 012024 $102.I belive all the motors have the same ratio.
If you have a prop I would run it and get prop size,the rpm and speed.
Then make the decision based on your numbers.