As seen in Speedboat Magazine’s
May 2023 Issue.
525 SC Gen V 502
Conversion/Upgrade
Dear Bob:
Q. I have a 1991 20’ Four Winns Liberator.
Recently, I purchased a freshly built motor
that is a 502 Gen V Big Block with the
Mercury 525SC supercharger set up using the
Weiand 177 blower with a single Dominator carburetor. I installed the engine in the 4 Winns and after running it noticed that the oil was getting water in it. When I checked it out, I discovered that the intake gasket the engine builder used was squeezed out at the water passage close to the #2 intake port. The cylinder heads on the motor are an Edelbrock aluminum hard anodized head designed to replace the stock iron heads. They have old Crane stud girdles and I am not sure of what the valves and other components are. At this point, I want to check out the upper end and get the correct intake gaskets and sealers to re-assemble the motor. Any advice that you have would be helpful.
Brendan Riley
East Haddam, CT
Is this drive too small? should I consider changing to a different drive? Will I get more life out of a different drive? play on Lake Havasu.
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