Looking at the way the bilge blower is plumbed, I would want to do a good inspection on the rest of the mechanicals.

A little more Cigarette 24 info....there were basically 2 Generations of the "24", early and late versions. There is also the mid-80s Firefox, but that is an entirely different design.

The early "24" was made in the early 70s (approx 72-75?) and is easily spotted by the inlaid Teak Bow (and Engine Covers) also it has a more traditional straight up windshield...all of those I have seen seemed to be originally powered by Twin 6s. These also seem to be the most plentiful, if you call 6-8 "plentiful". Here are some examples.

http://lh6.googleusercontent.com/-NI...09%2520006.jpg

http://lh5.googleusercontent.com/-QD...09%2520015.jpg

http://lh5.googleusercontent.com/-mJ...1063.sized.jpg


The late" 24" was made in the late 70s, early 80s (approx 78-81?) and is a true "Flat Deck" all fiberglass with no Deck Teak Inlays (some have teak on the dash). These are easily spotted by the true flat deck and unique faceted Windshield. The 4-5? I know of are all Big Block Singles. Some Examples...

http://lh3.googleusercontent.com/-QE...e_24.sized.jpg

http://lh6.googleusercontent.com/-Ho...edium%2529.jpg

http://lh4.googleusercontent.com/-xb...7/IMG_3132.JPG

http://lh6.googleusercontent.com/-5w...1280414275.jpg

http://lh3.googleusercontent.com/-It...01_578-800.jpg

http://lh4.googleusercontent.com/-Ge...4_1005edit.JPG

Hope that helps,

Dave