Test fitting piston rings to find a usable set. Tommi 17.3.2013, 14:53 Full size 1000 × 563 pixels Test fitting piston rings to find a usable set. Previous imageSaab-Sport-trim-pieces-left-side-rear-aluminium Next imageWe decided to go with a V4 cylinder head bolt as it turned out to be similar length as two stroke. The black bolt in the picture is V4 and the lighter is two stroke original. Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *CommentName* Email* Website Save my name, email, and site URL in my browser for next time I post a comment. Notify me of new posts by email.