78 Seavette

[Abe's Rocket]

holy smokes

[warthog5]

I just hope that the engine doesn't require premium fuel

You can bet your a$$ it need's preminum fuel. Anything with a compression ratio of 10 1/2 to 1 will need it.

[ScottM]

500 ponies!! [img]/images/graemlins/shocked.gif[/img] I bet that thing runs low 60s easily. The specs say max "outboard" hp is 500, but no mention of an I/O rating. Hopefully you don't run into any insurance issues.

Your Sceptre looks like a great boat so you shouldn't have trouble selling it. Good luck and let us know how the Vette runs. [img]/images/graemlins/grin.gif[/img]

Finny, now you're REALLY going to need twins on your Vette. [img]/images/graemlins/tongue.gif[/img]

[lost2a6]

You can bet your a$$ it need's premium fuel. Anything with compression ratio of 10 1/2 to 1 will need it.

Yea I know if it had around 9:1 compression I could get away with low octane fuel as long as the camshaft had a lot of valve overlap therefore reducing cylinder press. It would be hard to get 500HP out of a normally aspirated 9:1 454.
I don't imagine that insurance would be any problem. As far as they know it is still a 330HP 454. [img]/images/graemlins/grin.gif[/img] That boat might not have a maximum HP rating plate on it. From what I understand the coast guard only require for boats that are less than 20ft to have a max HP rating.

[ScottM]

Steve,
Not sure of the CG requirements, but here are the specs in case you're interested. I believe this is for the '78 model year.

Seavette Specs

[lost2a6]

Steve,
Not sure of the CG requirements, but here are the specs in case you're interested. I believe this is for the '78 model year.

Seavette Specs

Thanks!

[Scott]

Finny, now you're REALLY going to need twins on your Vette. [img]/images/graemlins/tongue.gif[/img]

Talk of a Seavette and not one peep out of Finny ??

Lost ...congrats on the boat. Looks like she was well taken care of. Wait till you take her for a ride ... [img]/images/graemlins/cool.gif[/img]

[Finster]

Talk of a Seavette and not one peep out of Finny ??

Dudes, I've been away. I'll catch up with you guys in a few days.
I know of another 78 Seavette with twin two-thirsty-fives. And the boat sat stored inside for 25 years. Hopefully he'll chime in and tell you guys about the it. It's a very cool story.

BTW, I plan on eventually putting twins on it. I may need to setp it up bridgeports or 2.5 liters now.... [img]/images/graemlins/crazy.gif[/img]

[Finster]

Great looking boat! Looks like they did some customizing in the berth. I never really liked the original configuration anyway. Mine had a solid bulkhead and split door inbetween the two berths, I guess to give you privicy while on the pooper. [img]/images/graemlins/tongue.gif[/img]

[lost2a6]

I got the vette. I arrived Sunday with it and boy do I have a story to tell. I'll tell you all what went on when I get some time. Right now I just got off of graveyard shift and I'm getting ready to go to bed.
What years did they make the seavette?