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    454 mag mpi Horizon builds

    Hi Guys Finaly finished motors after complete rebuild and balanced. So far very happy with outcome. New Dart heads iron eagle 308s rectangular ports. Same cam and Crank. Everything else new. Also running new roller rockers. Anyway you get the drift. And yes im still a complete novice. Just...
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    454 mag mpi Horizon engine harness pin hole confusion

    Hello again with the help from this forum and others i have got the engine running on stand. i bought a few guages to help with the monitoring of water temp, oil pressure and RPM when looking at the engine harness plans i sorted most things hence the running of motor. But i still cant get the...
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    Oil Bypass valves 30psi

    Hello from Oz gentleman, The more i read about these bypass valves the more confused i get. 454 Mag Mpi Horizon 2000 x 2 in Sea Ray Engine VI During rebuild i removed these oil bypass valves, which was a good thing as they where blocked with debris. when purchasing new valves was where the...
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    On Stand engine starting

    *454 Mag Mpi Horizon stand starting. Hello all, First time post I have just spent the last 4 months Pulling down and completely rebuilding 2 x 454 mag mpi Horizon motors. I would like to start the motors on the stands i have built, before installing back into the boat. So i am after someone...
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