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  1. #1
    My Boats:
    Checkmate 281
    Join Date
    Nov 2007

    Post Riser spacer help

    Anyone know were I can get exhaust riser spacers, and if so do they come in different sizes? I have to go with spacers due to my twins are too tight to install performance exhaust systems, I was working with Trick, bad news their, also I tried stainless marine, nothing they could do to help, and I tried a set of EMI thunder, everything is too tight, do to my 30Ē prop shaft to prop shaft measurements, problem I thought was reversion, however after checking the cam card, and only having a small cam, 220 duration, I now feel that I donít have enough rise in my risers, water in the motor is not my friend, last season I had to rebuild the top end twice, so I think that it might be the best thing to do over the winter, any suggestions would be great.

  2. #2
    Gold Member Gold Member
    My Boats:
    34 Fountain trip 300's
    Join Date
    Jan 2004
    Houston, Texas
    If you are talking about spacers between your cast iron exhaust manifold and top cast iron elbow, then I had the same system in a 1987 Sea Ray Pachanga. They did make different heights (2", 4", 6", etc.). I purchased all mine from Palmer Power in Houston 713-644-6410. I will say though, that I lost a few engines when I tried to make the manifold system last longer that I should. Gasket surfaces would warp, I would add sealant, leak would eventually occur, and no more motor.

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