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Old 07-31-2009, 03:02 AM   #1
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Newb with a ChrisCraft stinger question...

I did a search first but didn't find out what I was lookin for, so here's my question......Does anyone know anything about a 390x with that came with twin turbo'd 502's blow-thru style? The guy doesn't want that much for it and I'm just doing a little research on it before I decide to purchase it. Thanks.
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Old 07-31-2009, 08:15 PM   #2
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30'max cat
They Are MCM 475 Turbo. 475 HP. 454 cid 7:1 Cr. We used to put 4:25 Stroke cranks in them and make 482cid. If I remember right Gale Banks had something to do with them back in the day.

Last edited by TP2 : 07-31-2009 at 09:38 PM.
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Old 08-05-2009, 09:16 AM   #3
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1980 Wellcraft Scarab 377 twin turbo
Chett, If you have the Mercruiser 475 Turbo you should have Speedmaster II drives with hydraulic steering. The turbos are a draw thru system. I have the MCM 475 turbo system in my Scarab. Here are a couple of pictures of it. The original system did not have an intercooler either.
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File Type: bmp turbo engine.bmp (810.1 KB, 20 views)
File Type: bmp turbo engine 2.bmp (810.1 KB, 14 views)
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Old 08-09-2009, 08:58 PM   #4
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thanks for the replies guys! If I buy the boat i'm gonna change all that stuff anyhow.
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Old 08-09-2009, 11:22 PM   #5
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1985 Mistress
Sound clips?

WOW. I can only imagine these boats sound awesome!! Any sound clips of video coming up on boost?
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