You don't have to spend over 300 for the flywheel. Your local Chevy dealer that carries GM Performance parts sells brand new nodular iron 153 wheels for under 180 bucks. It is a lightweight flywheel that weighs 15 lbs. I'm pretty sure they have the standard weight flywheel also as it is still used on the Mercruiser 3.0L ( 181 inch ) 4 banger. If you come across a used marine wheel the clutch surface and p-plate bolt holes will have never been used. Those engines only use the wheel for starter mesh and of course for inertia. The marine drive is from a coupler bolted directly to the hub of the flywheel and crank. Perhaps a light resurfacing and cleaning of the 6 p-plate holes is all they need just to clear any surface rust.
