A video description of a Geo Jeff Head
This is some raw video footage I found showing some custom work from when we were competing in the ECO Prize competition. This is where the 3rd generation MPG and Hill climber Heads were developed.
#3. HILL CLIMBER HEAD- $100 refundable core included in price
Custom Head Option When Purchasing a Long Life Complete Engine
$0.00 - $100.00 $0.00 - $375.00