Gentlmans express pistons. They have been performance coated and have deep pockets for a higher lift cam.New piston rings. Comes with wrist pins. For those that dont know, these are cb750 pistons that have been machined to fit a cb550. You will have to bore out your cylinders to fit the diameter. Here is a link to the original article about these pistons. http://forums.sohc4.net/index.php?topic=20601.0
$150
$150
