??? for the pros (ENGINE SWAP)

[mrduramax]

??? is can I fit a merc black scorpion 5.7 L 330 hp in my 2001 invader 175 (17.5 ') that hase a 3.0L merc right now

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

pics are not working


NO this is not a joke

 

[Gary H NC]

Re: ??? for the pros (ENGINE SWAP)

Anything is possible if you are willing to rebuild the stringers to accept the engine mounts as well as replacing the complete drive...
Cheaper to sell that boat and buy one with a 5.7 Merc...

 

[HT32BSX115]

Re: ??? for the pros (ENGINE SWAP)

??? is can I fit a merc black scorpion 5.7 L 330 hp in my 2001 invader 175 (17.5 ') that hase a 3.0L merc right now

It would be fairly easy if that boat was originally offered with a V-6 or a V-8.(It will probabably already have all the mount points for a V-6/8 engine.

The rest of the swap would be to put a different drive on the back. (the ratio will be all wrong for a V-8) That's a GEN II drive you have and they're in demand. SO you could easily sell it if it's in good shape.

Then you can get yourself a brand new SEI drive in the correct ratio (for probably less than you get for the GEN II used)

It's all "Do-able". You might need a different inner transom plate and you would need a Y-pipe unless you want to go to thru-hull exhaust.


Will it be worth it? You decide. If I could find a 502 EFI cheep enough I'd swap my 454 for it!!


Cheers,


Rick

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

the boat can come with a 4.3L it was an option
the drive is in perfect shape paint is like new (probable 50 HR)
alfa gen 2
engine comes from a 2006 centurion wake boat(5.7L )


if I can resise the pictures I wil post them , boat and engine

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

the gen II is 2.0 drive
here are the pics of the engine
boat pics are to big

 

[cooter2506]

Re: ??? for the pros (ENGINE SWAP)

WOW that would be a lot of HP in a 17.5 footer.

 

[mkast]

Re: ??? for the pros (ENGINE SWAP)

Think of that thrilling feeling you'll have the first time you try to turn the boat at WOT and there isn't enough hull in the water to make the turn.

 

[Euro95]

Re: ??? for the pros (ENGINE SWAP)

Wake boat, as in inboard? Some things are not going to fit then...

 

[HT32BSX115]

Re: ??? for the pros (ENGINE SWAP)

The engine will work. You'll have to get the proper flywheel, bell housing and coupler. The engine will have a raw water pump on it that should probably be removed unless you want to use the thru-hull water pickup from the ski boat...... I don't know if you can remove the sea water pump in an Alpha and just not use it......there'd really be no point in using the engine mounted pump unless you wanted to put a Bravo on it.......and you wouldn't want to that.....

The Alpha drive ratio will be ALL WRONG for a V-8. (WAY TOO LOW) It might work with a pretty high pitched prop though. That's not a good way to run. You would probably cavitate the beejeebers out of it on a full throttle launch.....It's far better to just get the right ratio drive.

I don't think that's (way) too much HP for that boat. I had a 1966 Marktwain 18ft boat that (optionally) came with a 409 Chev V-8 and Mercruiser #2 drive. The boat was placarded for 310hp max.

The engine you have will probably rate at less than 300 propshaft HP with the an Alpha on the back.

btw, the pictures are just too small to see.........

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

I wish I could load the boat pics for you guys

 

[Bondo]

Re: ??? for the pros (ENGINE SWAP)

I wish I could load the boat pics for you guys

Ayuh,... It really don't matter,... All your questions have already been Answered....

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

Just got the engine so here gose nothing
so I wil have lots of ???????
THANKS GUYS

 

[HT32BSX115]

Re: ??? for the pros (ENGINE SWAP)

I wish I could load the boat pics for you guys

If you want to load pictures you really need to use a (free) picture hosting service like Photobucket or similar

Then you just use the picture hosting links. If iBoats and other forums were to allow people to post large picture files, they would probably need to double or triple their server capacity.

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

pics

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

I may have a perfect 3.0L for sale
And I ame looking to use the drive that I have or trade for a mint drive that I wold need

ps I wold like pics of parts you guys say I need thanks I ame new to boats



can you guys tell me if the stingers are good for a 5.7

 

[Shrub88]

Re: ??? for the pros (ENGINE SWAP)

can you guys tell me if the stingers are good for a 5.7

The centerline of the stringers on my 5.7 Checkmate are about 22 1/2 to 23 inches apart.

 

[mrduramax]

Re: ??? for the pros (ENGINE SWAP)

The centerline of the stringers on my 5.7 Checkmate are about 22 1/2 to 23 inches apart.

mine is 24" inside and 28" outside so I shold be close
thanks man

 

[ENSIGN]

Re: ??? for the pros (ENGINE SWAP)

Don`t forget good life insurance!!!