ottawamerc
Petty Officer 2nd Class
- Joined
- Sep 16, 2004
- Messages
- 128
Hello all
I'm swapping out my freshly rebuilt SBC 350 to a used 454 in my 87 SeaRay 268DA. The 350 is the 3rd engine in this boat and I can see why, it's way under powered and working to hard. I don't want to blow this fresh engine so I have done lots of research and the next available engine is the 330HP 454 which owners say is good combo for this boat so here I am! I just bought a used 454 complete for $3K and I'm going to sell my 350 for hopefully the same as it cost me $3K to do the rebuild alone then hopefully the only cost is my labor to install (free) It has a Alpha outdrive and yes I know its underrated for the 454 but seems like many have this combo and as long as you don't beat on it it should last. I don't want to spend $$$ on a Bravo outdrive. First question is, the 454 had thru the hull exhaust and my boat has the Y pipe which I plan on keeping. Will the metal turn down elbows off of the 350 fit the 454 manifolds/risers? and #2 is the motor mount locations the same, including the mounts themselves? Off of the SeaRay web site I see that that model and year had an Alpha outdrive with a 1:50 gear for the 350 and a 1:32 for the 454. The 1:32 gear is no longer available so it looks like I will keep the original 1:50, the original prop is a 15 1/4 X 15 but I might have to change that for the 454? The boat also came with a 16X16 prop do you think this will match it ok?
Sorry for the long post but looking forward to your replys
Thanks Scott
I'm swapping out my freshly rebuilt SBC 350 to a used 454 in my 87 SeaRay 268DA. The 350 is the 3rd engine in this boat and I can see why, it's way under powered and working to hard. I don't want to blow this fresh engine so I have done lots of research and the next available engine is the 330HP 454 which owners say is good combo for this boat so here I am! I just bought a used 454 complete for $3K and I'm going to sell my 350 for hopefully the same as it cost me $3K to do the rebuild alone then hopefully the only cost is my labor to install (free) It has a Alpha outdrive and yes I know its underrated for the 454 but seems like many have this combo and as long as you don't beat on it it should last. I don't want to spend $$$ on a Bravo outdrive. First question is, the 454 had thru the hull exhaust and my boat has the Y pipe which I plan on keeping. Will the metal turn down elbows off of the 350 fit the 454 manifolds/risers? and #2 is the motor mount locations the same, including the mounts themselves? Off of the SeaRay web site I see that that model and year had an Alpha outdrive with a 1:50 gear for the 350 and a 1:32 for the 454. The 1:32 gear is no longer available so it looks like I will keep the original 1:50, the original prop is a 15 1/4 X 15 but I might have to change that for the 454? The boat also came with a 16X16 prop do you think this will match it ok?
Sorry for the long post but looking forward to your replys
Thanks Scott