Aussie here
 

hi guys how do i tell what drive i have on my boat it has SE106 on the leg

ok i found out of google its a alpha 1 seems like theres different ratios and hp rating as well as max rpm

SE106 is a STERNDRIVE ENGINEERING aftermarket replacement for an ALPHA 1 early style(90-).

ok thanks ferm can u tell me a little info on these are they any good and what about ratios could this be one of the reasons my boat was under powered did they put the wrong ratio in it omg now i will have more head aches HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Your gonna have to look it over as the upper should have the gear ratio stamped on it somewhere I believe(spare will know better than me on this one though). They make a good quality product for a fraction of the OEM units. Only complaints I have heard of have been a few with gear noise due to improper break in, and some paint issues(the paint problem was only on the early ones).

http://www.sterndrive.cc/mm5/merchan...ercruiserAlpha

ok well the paint has peeled of the top i intend to paiont it in 2 pack ill check the ratio when i get the bottom end out well im quite sure it has the wrong ratio in it cause when i gave it a run at wot it was only 3800rpm ill check my old post i think i posted it thanks ferm

hey ferm thanks for the link cant find on the site how to identifie ratio well ill check to nite ill goole serial number of to mums for mothers day bye

What pitch prop do you have on it?

one of the stickers is missing og the leg so ill have to count the teeth on the drive any one no what these legs are like for strength and hp rating

The sterndrive engineering outdrives are as good as the OEM, so your good to a 300HP small block with it. HP isn't the killer of them though, torque is. I seriously doubt that a 3.7L can make enough torque to hurt one.