500 hp BB closed cooling...

[Clancy72]

Anyone know of a good closed cooling system maker for BBC running about 500 Hp? What type of exhaust should I be running with this app? I/O. Currently have a thru transom system that exits below swim steps with turndowns into the water at idle and out of the water on plane, no baffles, wet system

[Clancy72]

Cmon guys, little help here...

[franky]

Seakamp Engineering makes various closed cooling system kits. They are in Washington. Call them for info 800-753-4436