Hello Nitrocrushr; Thank you for your contribution, even though yours definitely complicates the issue at hand. How could I know if the stroke is stock or not? Measuring the length of the piston or what? Regards. Lajos
Here is what happened; after I managed to dismantle and clean up the action I have ordered a set of Vortek Pro 4 HO spring kit a piston seal and 2 O rings for the compression tube. Installation of the Vortek spring kit requires a piston compressor. I t also says this on their instructions.