1991 Lavey Craft Mod V Project
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1991 Lavey Craft Mod V Project

  1. #1
    Senior Member INTHERED's Avatar
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    Default 1991 Lavey Craft Mod V Project

    Last summer I bought a 1991 Lavey Craft Mod V jet boat. I was told that only two of these boats were ever manufactured at Lavey and that all of the rigging on the boat was done by Tom Papp because Lavey had no experience with jets. The boat was in pretty rough shape and came with a seized LS6 and American Turbine pump that had been worked over by GS Marine. This is what the boat looked like when I got it.
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  3. #2
    Senior Member INTHERED's Avatar
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    My first task was to gut the boat and start fresh. Every single wire was removed along with every piece of hardware in order to powder coat it. The boat was sent to get the deck re-glassed because of sun damage and the trailer went to Enduro trailer in Lake Havasu City and was sand blasted, fit with new 66x9 fat fenders, lowered, and received a new polished tongue and flip wheel.
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    Senior Member INTHERED's Avatar
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    The next order of business was re-wiring the boat. There was a rat's nest left over from the previous owner, so instead of trying to untangle it I decided to just start fresh. Along with the new wires I added a brand new set of Auto Meter carbon fiber gauges including a deck boost gauge (supercharger to follow) and custom built switch panel from EMI. The before and after was result was much improved.
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    Senior Member INTHERED's Avatar
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    At this point the boat was looking 10 times better. The boat went back on the freshly painted trailer and some of the hardware that had been powder coated black had been placed back on the boat.
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    Senior Member INTHERED's Avatar
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    The pump build was my next project. What I was told was a "completely rebuilt" pump when I purchased the boat was far from it. I had the guys at Jet Boat Plus in Havasu tune the bowl and a AA billet 5 blade impeller was added along with a droop snoot. The pump also features a hydraulic Place Diverter, ride plate, shoe, and rudder. Each piece was blasted and coated black and a few of the pieces were sent off to be polished for some contrast. The final product came out really nice.
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    Last edited by INTHERED; 07-13-2010 at 12:21 AM.

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    Motor Build: I bought the boat with a seized LS6 in it... The only thing that was reused was the block. Block was bored .30 over, decked, and honed, and features a Scat 4.25 forged crank with Scat forged H beam rods and JE 8.5:1 forged flattop pistons, file fit rings, Doug Herbert custom grind solid roller cam, Pro Comp aluminum heads, Scorpion roller rockers, Blower Shop 250 blower set up for 8 lbs of boost, Blake Carburetors 1050 Dominator, Holley blue fuel pump with Street Avenger regulator, full Pro Comp ignition system with 6al box, and EMi Thunder exhaust with stainless S pipes. Entire motor is AN lined (water lines for headers will be done soon).
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  9. #7
    Is it Summer Yet?! SoCalKev's Avatar
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    That's Badass!
    Sanger Super jet in Progress

  10. #8
    Senior Member INTHERED's Avatar
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    More Pics...
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  11. #9
    Senior Member Uncle Dave's Avatar
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    Thats gonna be a really quick setup.

    I have a 20.8 i/o that runs 90 with a 500HP small block.

    Great thread! I cant wait to hear how it runs.

    Uncle Dave
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    Last edited by Uncle Dave; 05-13-2010 at 03:57 PM.

  12. #10
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    The interior was the next project. Black carpet was laid down over every surface and every piece of hardware in the boat was powder coated black and reinstalled. The original teak ski lockers were sanded and stained black. A new Grant steering wheel was added along with all new steering and throttle cables. For an added bonus a massive stereo was added including (2) 6x9s, (4) 6.5s, (2) 12 in subs, a 1000 watt Fosgate five channel amp, and an Alpine head unit. All of the speakers and amps are hidden except for the two 6x9s that are visible in the back seats. The sound is pretty impressive for a little jet boat.
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  13. #11
    Senior Member INTHERED's Avatar
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    The boat went on its maiden voyage this past week and performed pretty well. There were several leaks discovered that are currently being fixed a the gel coat shop. The motor is running flawlessly and has a neat 500RPM blower surge because of the huge cam we put in it. We made a pass at 4,900 RPM and hit low to mid 70's at 1 pound of boost. The leaks were too prevalent to keep running the boat so once those are all fixed we hope to be able to get up over five grand and see if the boat comes alive. Current projects on the boat over the next couple of weeks include fixing the leaks, plumbing the exhaust water lines with AN fittings, and plumbing an oil cooler. I will post some updates soon.
    Last edited by INTHERED; 05-13-2010 at 04:05 PM.

  14. #12
    Senior Member Uncle Dave's Avatar
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    Sweet.

    Are you going to cover the engine or leave it exposed?

    Uncle Dave

  15. #13
    Senior Member GRoper's Avatar
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    Quote Originally Posted by Uncle Dave View Post
    Sweet.

    Are you going to cover the engine or leave it exposed?

    Uncle Dave
    my question exactly. I just bought an eliminator with the same set up and want to put headers on it but am not sure they will fit under the hatch.

  16. #14
    History Repeating Storz's Avatar
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    That is beautiful, leave the engine cover in place the boat looks much more sleek with it there!
    '84 Laser LTV - Restoration in progress
    '77 Caribbean

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