454 big block chevy.. water temps and oil temps?
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454 big block chevy.. water temps and oil temps?

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    Senior Member norcal73's Avatar
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    Default 454 big block chevy.. water temps and oil temps?

    What is the best water and oil temp while running a boat? I have a 73 Sanger V-drive with a 454 running between 5 and 7 boost through a 6-71. Timing lockout at 30 on the dizzy. Water temp at the intake was 120 degrees and oil at 220 degrees in the pan running straight 30 oil during break-in.

    norcal73

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    gn7
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    I am going to assume this was at a cruise. If so, it could be a little warmer, but I would say its fine as is. It will probably climb some when hammered. If you want to raise the water temp, just restrict the over board dump from the engine a little. Oil temp is fine.



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    Senior Member norcal73's Avatar
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    Between 2000 and 2800 rpms for 30 minutes, yeah, basically a cruise. Would a gate valve on the water exit hose work? This lake is around 50 degrees in the spring and 88 in the summer.

    norcal73


    Quote Originally Posted by gn7 View Post
    I am going to assume this was at a cruise. If so, it could be a little warmer, but I would say its fine as is. It will probably climb some when hammered. If you want to raise the water temp, just restrict the over board dump from the engine a little. Oil temp is fine.

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    Correction

    Quote Originally Posted by norcal73 View Post
    Between 2000 and 2800 rpms for 30 minutes, yeah, basically a cruise. Would a gate valve on the water exit hose work? This lake ( Lake water temperature) is around 50 degrees in the spring and 88 in the summer.

    norcal73

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    gn7
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    Yes you couild use a gate valve if you cruise it for long periods. But remember, the temp is going to jump when you hammer it. Specially a blown deal.



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