Single Carbureted:

• Bow tie and all production-type blocks allowed. Any Iron block allowed.
• Any production iron or aluminum head allowed. No Pontiac, Oldsmobile or big chief style heads.
• Cast aluminum intakes only. No custom or sheet metal intakes.
• Single carburetor only allowed.
• GAS FUEL ONLY. No nitrous. No blowers or injection.

7 Distinct "Thunder on the Chain" Classes:

Lake Racer Outboard
Pro Modified Outboard
Lake Racer Inboard
Single Carbureted
Multiple Carbureted
Open Class
Blown Alcohol Class

General Boat Race Guidelines

Blarney Island would like to thank our sponsors:

Ray Chevrolet | Raymond Chevrolet