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-   -   Question for 7xchamp...... (https://www.offshoreonly.com/forums/classic-offshore/169193-question-7xchamp.html)

mr.scrich 09-22-2007 09:18 AM


Originally Posted by Stormrider (Post 2280036)
scrich, where do you plan on buying, over there?

Stomrider, i must search someone that sells me them at the best price!!!6 october i'll go to genova boat show and i'll speak with someone of "mercury mercruiser" i know certenly tha during the boat show thera are very good discount!!!.....why this question?can you offer me 2 packages of 496ho with bravo one drives and cmi exhaust at very good price???federico

Stormrider 09-22-2007 04:12 PM

no, just not sure if you had to have merc, and if you were looking at aftermarket, to buy in europe or buy them here.
plenty of builders here can do a 502block w/ 450hp.

mr vinyl 09-22-2007 09:04 PM

Not a sport ...Maltese
 
3 Attachment(s)
The Magnum That Mel is finishing up is a 1976,27 Magnum Maltese with 383's and Bravo's

mr vinyl 09-22-2007 09:10 PM

3 Attachment(s)
Additional photos...it runs in the mid 70,s...don't even have it dialed in. Bud

mr.scrich 09-23-2007 01:17 PM


Originally Posted by Stormrider (Post 2281040)
no, just not sure if you had to have merc, and if you were looking at aftermarket, to buy in europe or buy them here.
plenty of builders here can do a 502block w/ 450hp.

can you find for me 2x502 (450hp)?

Smarty 09-23-2007 08:30 PM

3 Attachment(s)

Originally Posted by mr.scrich (Post 2279969)
Thank's Smarty...do you know what model of big bloch were they?and have you some photos?federico

Two 454 cu.in. Chevrolet LS-6 motors, single 850 Holleys. Glenwood log exhaust manifolds, with custom tail pipes. Turned 27" Mirage Props 5200/5300 rpms. The TRS drives are on 32" centers.


Here ya go...

Smarty 09-23-2007 08:35 PM

3 Attachment(s)
A few more pictures for you, these were taken three years ago.

el indio 09-23-2007 09:32 PM


Originally Posted by Smarty (Post 2281848)
Two 454 cu.in. Chevrolet LS-6 motors, single 850 Holleys. Glenwood log exhaust manifolds, with custom tail pipes. Turned 27" Mirage Props 5200/5300 rpms. The TRS drives are on 32" centers.


Here ya go...

was it a smallblock boat with 32" centers originally?

Stormrider 09-24-2007 08:11 AM

Scrich, check with JCPerf on this site.
He's located in long island, NY.
Built my engine for my old boat.
There may be others on this site to do it too, maybe for less.
Post in the general forum for what you are looking for.
My guess is you'll be looking at 15K each.
You may also want to try Laz Mesa of Mesa Balancing in south Florida.

7xchamp 09-24-2007 12:10 PM


Originally Posted by mr.scrich (Post 2278804)
Hi,my name is Federico i'm an italian boy and Black Tornado(Marco another italian boy member of thi site)has sayed me that you have a great experience about engines! i would like to change my engines:2x330hp 7.4 v8 mercruiser that stay on magnum marine starfire 27.....and i would like put on about 420 hp for engine and take it around 450/470hp with the exhaust system!!!1
But i'm very uncertain for the choice of the model:new "496mag ho" or "old 502" or other else ,could you give me some advice?Remember that i love the rumbling!!!
Thank's federico.

Federico: What stern drives are you planning on running on the boat is a big question??????? I presume you have the TRS drives if you were running the Mercruiser 330`s. If so and you intend to stay with TRS you should have the transmissions rebuilt and modified for the bigger horsepower.
That`s why I suggested the Bravo drives etc. in my original reply to you. So it gets down to if you are replacing the complete engine pkg. or just the engines. If it is just the engines you will not need the bellhousings etc. as you will use your TRS setup, and have a direct replacement. Good Luck
7XCHAMP


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