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#1
11-26-2012, 12:53 PM
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5.7 Litre Vortec MX Plus
Can anyone tell me if my 1998 350 C.I.D Vortec 5.7 Litre MX Plus is an Indmar conversion? The exhaust manifolds say Mastercraft Power.
Also do I have the flat tappets or a roller cam? Thanks 
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#2
11-26-2012, 01:29 PM
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Well, I have an MX Plus in my boat, and it is certainly an Indmar conversion. I have no idea what the valve train looks like, and I hope to never have a need to look into it.
What information are you looking for? /frank
__________________
1998 Maristar 200VRS 
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#3
11-26-2012, 01:38 PM
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I'm new to Mastercraft and most that I've seen say Indmar on the engine. Mine says Matercraft Power on the manifolds. So I thought I'd ask. As far as the roller cam goes, I saw that a pre 1998 had flat tappets vs. the rollers. Less wear as far as I know.
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#4
11-26-2012, 03:39 PM
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The MX is a throttle body injected Indmar conversion. It has Vortec heads, and the consensus is that it has a roller cam. I just winterized one this past weekend. Great, torquey, reliable engines.
__________________
Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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#6
12-12-2012, 09:11 AM
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+1 on what East TX says. I have a friend at Indmar - will ask and let you know.
__________________
 ...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
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