Formula 233 Registry

The premier site for owners of the famous 233.

Designed for owners and fans of the one of the world's original offshore powerboats, Don Aronow's famous 233.



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Latest Activity

john hedlund replied to john hedlund's discussion 1 or 2 engines
"Hello Steve thanks for the response. Yes i agree docking and general maneuvering in tight places would be easier with twin motors. I heard that two motors are twice the maintenance and hassle, but on the plus side i guess you could limp back in if…"
Steve Rush replied to john hedlund's discussion 1 or 2 engines
"John,  I have an '82 233 with a single Merc 260. I would love to have twins for docking etc. I had the 260 rebuilt last spring and it has plenty of power and the boat handles really well so I am not looking for ore speed. I have seen some…"
john hedlund posted a discussion

1 or 2 engines

Hello everyone. I'm looking at 2 mid - late 70's 233 Formulas. one has a 351 bored to 408 ci. And the other has 2 4 cyl. engines. Excluding outboard engines, what do most 233 owners prefer. 1 8 cly. engine, or 2 4 cyl engines ?Thanks, John HedlundSee More
Mar 3
Wally Wally commented on Wally Wally's photo


" Not an easy project installing the windshield by yourself but I did it without breaking any glass or scratching the paint  "
Mar 3

Devoted to the famous 233

This registry is dedicated to preserving the heritage of Don Aronow's famous Formula 233. A place to network with other 233 owners, discuss technical issues, get and give advice, exchange knowledge and compile a database of the remaining 233's. If you've ended up here you've got some connection to a 233. Special thanks to HORBA for providing images. Please visit the Historic Offshore Race Boat Association , an organization dedicated to educating the public about the history of offshore racing. Welcome and thanks for visiting.


1 or 2 engines 2 Replies

Started by john hedlund in General Discussion. Last reply by john hedlund on Friday.

Seeking 1960’s 233 sportsman 2 Replies

Started by Bowline Will in Wanted/For Sale. Last reply by William MANNING Feb 14.

Transom Bracket Dimensions 4 Replies

Started by Mosby West in General Discussion. Last reply by Rick Dec 17, 2018.


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