#1
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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 |
#2
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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
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1998 Maristar 200VRS ![]() |
#3
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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
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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.
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Previous: 1993 Prostar 205 Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox. FAQ Be kind. Have fun. |
#5
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Is there a way to confirm that?
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#6
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+1 on what East TX says. I have a friend at Indmar - will ask and let you know.
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#7
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so is this engine a 310hp or a 330 hp?
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1999 Maristar 230 VRS |
#8
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It's the throttle body motor so it's not 330hp. I thought I remembered the tbi motors putting out 290 around this year but I would imagine someone will chime in who knows for sure
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1986 Marlin Magnum Skiier-sold 2000 Maristar 210VRS-weekend ride 1996 205 with LT1 cracked block-winter project |
#9
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#10
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Thanks! This is an eye opener, I always thought it was an odd engine, but now I know it's just a predator.
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1999 Maristar 230 VRS |
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