WWII Packard 4M2500

This is the newly rebuilt Packard almost ready to go back in the Antique Boat Museums 48 foot “runabout” Pardon Me.  She simply purrs now at a 400 rpm idle.  About 1650 HP and burns 50 gallons of AVGAS at 2100 rpm.  Look at the camshafts.  Design on this monster engine started in 1934.  She weighs in about 3950 lbs including gearbox

Regards
Dave Richardson

One Comment

  1. Hello from Switzerland

    I have found in Sweden a Packard 4M 2500 engine. Last week I cleaned the engine with dry ice.

    I like to do a running test stand with this engine. Please, can you help me in this project?

    First of all I like to know how I must do all the cooling water system as easiest and best way?

    Many thanks in advance!

    With kind regards,
    Hannes Jakob

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