IT is defiantly an Alfa one outdrive I have owned this boat since it was new. the outdrive still has the Alpha one decal. I run a 15.25x 15 prop with a high Rpm of about 4200 and a top speed of 38- 40 mph. under good conditions. Normally I could rum at 3200 rpm and 30 mph give or take. I don't know much about the gear ratio's on these outdrives I have found a bunch of lower units on line but don't want to buy until I know for sure if an Alpha 1 gen 1 will work or I need a gen 2.
Ayuh,.... Welcome Aboard,..... It's not a Gen.II, as they didn't come out til 1991,.....
Then something doesn't add up. The boat is 1983 (you said in your first post), but the Alpha One wasn't released until 1986. And in 1986, the 4bbl version of the 305 was designated '230', not 228. It was called a 228 up to (and including) 1984, beyond that, it was always called a 230...
I finally found the ID Tag on the outdrive it reads 1.50 ratio serial#00476330 I'm guessing I will need a 1.47 ratio to replace it now .I now know this is an Alpha 1 gen 1. from all the research I have done. I have replaced the engine 2 times thru the years so serial # will do no good. At this point I need to know my best options. Thanks for any infor you can give me.
The mystery deepens... That serial numbers is a Gen II serial number. 1991.
Ayuh,....... A complete aftermarket SEI replacement outdrive,.....
