The key to success in a car building project is access to high quality, reasonably priced parts that get the job done right. Each Allstar part is the result of our dedication to research and development. Once a need is established, parts are designed and manufactured by talented craftsmen, many of whom are racers and hot rodders themselves. Many Allstar Performance parts are one-of-a-kind; you won’t find them anywhere else! Cylinder Head Porting Kit – Case / Mandrels / Rolls – Universal – Kit. Please do your own research to confirm this part fits your vehicle. Processing begins as soon as an order has been placed, therefore we cannot change, cancel or modify orders once they have been confirmed. Most e-mails are answered within 24 hours, including weekends and holidays.