Wristpin Keepers for Graf Stroker Pistons 45”/750cc Flathead

Admittedly the investment for a set of stroker flywheels is pretty hefty and you wouldn't crown this wonderful device with a set of inferior pistons, would you? The Wrecking Crew, for one, didn't want to gamble and had these special pistons made by the renowend German manufacturer Graf. Those guys supply the vintage and classic racing scene since decades and you can simply trust their material. And yes, they are more expensive than your average 45 piston but a seized or broken piston at full throttle is by far more costly, guaranteed. ...