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  1. J

    Re-powering Questions ???

    This question will absolutley show my lack of knoweldge when it comes to engines. What are the sure fire ways to determine whether a replacement engine you are going to purchase is actually new or was re-built??
  2. J

    Can a big block run with one broken exhaust valve??????????

    If yes...... How long could the engine run for? What signs could you expect? Would you hear a loud popping when throttling up, almost like a backfire but then it goes at high RPM's and full throttle? My new engine now has a broken exhaust valve at 50 hours of run time. After about 25...
  3. J

    Broken Valve ?? Questions ?? Valve Head Broken Where It Connects To Stem

    New 454 Big Block with just about 45 hours on it, thru hull exhaust. This new engine was installed after freeze damage from the original motor. Was running at about 50mph last year with the new engine when the alarm went off and simultaneously the engine shut down completely, this happened...
  4. J

    Questions about engine detonation....

    What are some common causes of detonation? Can detonation be caused from a failed fuel pump? Can detonation be caused from a failed or failing carburetor? Can detonation cause damage to the threaded part of a spark plug and the igniter?
  5. J

    Engine Operating Temps. Questions and Trouble

    New built and modified engine from a local shop, engine seemed to run great but tempature alarm came on a few times. I noticed the tempature gauge would go almost all the way down then back up and sometimes to high setting off the temp. alarm. The up and down cycle of the temp. gauge seemed...
  6. J

    Increasing HP in a 454 big block.

    Hey everyone, I'm sure these questions can be answered in many different directions. Assuming the existing engine was rebuilt or like new condition, can someone tell me the least expensive simplified overview of what is involved with taking a standard 330 HP 454 7.4 ? Carbureted big block...
  7. J

    What is the best product to protect the Vinyl seats on my boat???

    Hey all, recently paid a large sum of money to have all the vinyl replaced with new. They look amazing, I went with a Brite White Vinyl which may have been a mistake. Even just unloading the freshly upholstered seats left dirty fingerprints. When wipping them down it almost looks like you...
  8. J

    Cracked Water Jackets big block, ???Questions??? Need help!

    Hello, thanks very much for taking the time to read and respond to this. I'll keep this simple as possible and hopefully give enough detail with this scenario. 1) Raw water cooled big block, Bravo drive. 2) The fresh cool water flow was severely obstructed while the engine was running. 3)...
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